Download or read book Zero Fail written by Carol Leonnig and published by Random House. This book was released on 2021-05-18 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEW YORK TIMES BESTSELLER • “This is one of those books that will go down as the seminal work—the determinative work—in this field. . . . Terrifying.”—Rachel Maddow The first definitive account of the rise and fall of the Secret Service, from the Kennedy assassination to the alarming mismanagement of the Obama and Trump years, right up to the insurrection at the Capitol on January 6—by the Pulitzer Prize winner and #1 New York Times bestselling co-author of A Very Stable Genius and I Alone Can Fix It NAMED ONE OF THE BEST BOOKS OF THE YEAR BY THE WASHINGTON POST Carol Leonnig has been reporting on the Secret Service for The Washington Post for most of the last decade, bringing to light the secrets, scandals, and shortcomings that plague the agency today—from a toxic work culture to dangerously outdated equipment to the deep resentment within the ranks at key agency leaders, who put protecting the agency’s once-hallowed image before fixing its flaws. But the Secret Service wasn’t always so troubled. The Secret Service was born in 1865, in the wake of the assassination of Abraham Lincoln, but its story begins in earnest in 1963, with the death of John F. Kennedy. Shocked into reform by its failure to protect the president on that fateful day in Dallas, this once-sleepy agency was radically transformed into an elite, highly trained unit that would redeem itself several times, most famously in 1981 by thwarting an assassination attempt against Ronald Reagan. But this reputation for courage and excellence would not last forever. By Barack Obama’s presidency, the once-proud Secret Service was running on fumes and beset by mistakes and alarming lapses in judgment: break-ins at the White House, an armed gunman firing into the windows of the residence while confused agents stood by, and a massive prostitution scandal among agents in Cartagena, to name just a few. With Donald Trump’s arrival, a series of promised reforms were cast aside, as a president disdainful of public service instead abused the Secret Service to rack up political and personal gains. To explore these problems in the ranks, Leonnig interviewed dozens of current and former agents, government officials, and whistleblowers who put their jobs on the line to speak out about a hobbled agency that’s in desperate need of reform. “I will be forever grateful to them for risking their careers,” she writes, “not because they wanted to share tantalizing gossip about presidents and their families, but because they know that the Service is broken and needs fixing. By telling their story, they hope to revive the Service they love.”
Download or read book Someone Has to Fail written by David F. Labaree and published by Harvard University Press. This book was released on 2011-03-01 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: What do we really want from schools? Only everything, in all its contradictions. Most of all, we want access and opportunity for all children—but all possible advantages for our own. So argues historian David Labaree in this provocative look at the way “this archetype of dysfunction works so well at what we want it to do even as it evades what we explicitly ask it to do.” Ever since the common school movement of the nineteenth century, mass schooling has been seen as an essential solution to great social problems. Yet as wave after wave of reform movements have shown, schools are extremely difficult to change. Labaree shows how the very organization of the locally controlled, administratively limited school system makes reform difficult. At the same time, he argues, the choices of educational consumers have always overwhelmed top-down efforts at school reform. Individual families seek to use schools for their own purposes—to pursue social opportunity, if they need it, and to preserve social advantage, if they have it. In principle, we want the best for all children. In practice, we want the best for our own. Provocative, unflinching, wry, Someone Has to Fail looks at the way that unintended consequences of consumer choices have created an extraordinarily resilient educational system, perpetually expanding, perpetually unequal, constantly being reformed, and never changing much.
Download or read book Zero Sum Victory written by Christopher D. Kolenda and published by University Press of Kentucky. This book was released on 2021-10-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why have the major post-9/11 US military interventions turned into quagmires? Despite huge power imbalances in the United States' favor, significant capacity-building efforts, and repeated tactical victories by what many observers call the world's best military, the wars in Afghanistan and Iraq turned intractable. The US government's fixation on zero-sum, decisive victory in these conflicts is a key reason why military operations to overthrow two developing-world regimes failed to successfully achieve favorable and durable outcomes. In Zero-Sum Victory, retired US Army colonel Christopher D. Kolenda identifies three interrelated problems that have emerged from the government's insistence on zero-sum victory. First, the US government has no organized way to measure successful outcomes other than a decisive military victory, and thus, selects strategies that overestimate the possibility of such an outcome. Second, the United States is slow to recognize and modify or abandon losing strategies; in both cases, US officials believe their strategies are working, even as the situation deteriorates. Third, once the United States decides to withdraw, bargaining asymmetries and disconnects in strategy undermine the prospects for a successful transition or negotiated outcome. Relying on historic examples and personal experience, Kolenda draws thought-provoking and actionable conclusions about the utility of American military power in the contemporary world—insights that serve as a starting point for future scholarship as well as for important national security reforms.
Download or read book Sixty to Zero written by Alex Taylor and published by Yale University Press. This book was released on 2010-05-04 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The collapse of General Motors captured headlines in early 2009, but as Alex Taylor III writes in this in-depth dissection of the automaker's undoing, GM's was a meltdown forty years in the making. Drawing on more than thirty years of experience and insight as an automotive industry reporter, as well as personal relationships with many of the leading players, Taylor reveals the many missteps of GM and its competitors.
Download or read book Ground Zero written by Alan Gratz and published by Scholastic Inc.. This book was released on 2021-02-02 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: The instant #1 New York Times bestseller. In time for the twentieth anniversary of 9/11, master storyteller Alan Gratz (Refugee) delivers a pulse-pounding and unforgettable take on history and hope, revenge and fear -- and the stunning links between the past and present. September 11, 2001, New York City: Brandon is visiting his dad at work, on the 107th floor of the World Trade Center. Out of nowhere, an airplane slams into the tower, creating a fiery nightmare of terror and confusion. And Brandon is in the middle of it all. Can he survive -- and escape? September 11, 2019, Afghanistan: Reshmina has grown up in the shadow of war, but she dreams of peace and progress. When a battle erupts in her village, Reshmina stumbles upon a wounded American soldier named Taz. Should she help Taz -- and put herself and her family in mortal danger? Two kids. One devastating day. Nothing will ever be the same.
Download or read book Zero Day written by Mark Russinovich and published by Macmillan. This book was released on 2011-03-15 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: An airliner's controls abruptly fail mid-flight over the Atlantic. An oil tanker runs aground in Japan when its navigational system suddenly stops dead. Hospitals everywhere have to abandon their computer databases when patients die after being administered incorrect dosages of their medicine. In the Midwest, a nuclear power plant nearly becomes the next Chernobyl when its cooling systems malfunction. At first, these random computer failures seem like unrelated events. But Jeff Aiken, a former government analyst who quit in disgust after witnessing the gross errors that led up to 9/11, thinks otherwise. Jeff fears a more serious attack targeting the United States computer infrastructure is already under way. And as other menacing computer malfunctions pop up around the world, some with deadly results, he realizes that there isn't much time if he hopes to prevent an international catastrophe. Written by a global authority on cyber security, Zero Day presents a chilling "what if" scenario that, in a world completely reliant on technology, is more than possible today---it's a cataclysmic disaster just waiting to happen.
Download or read book Zero to Five written by Tracy Cutchlow and published by Pear Press. This book was released on 2015-04-21 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you’re a new parent, the miracle of life might not always feel so miraculous. Maybe your latest 2:00 a.m., 2:45 a.m., and 3:30 a.m. wake-up calls have left you wondering how “sleep like a baby” ever became a figure of speech—and what the options are for restoring your sanity. Or your child just left bite marks on someone, and you’re wondering how to handle it. First-time mom Tracy Cutchlow knows what you’re going through. In Zero to Five: 70 Essential Parenting Tips Based on Science (and What I’ve Learned So Far), she takes dozens of parenting tips based on scientific research and distills them into something you can easily digest during one of your two-minute-long breaks in the day. The pages are beautifully illustrated by award-winning photojournalist Betty Udesen. Combining the warmth of a best friend with a straightforward style, Tracy addresses questions such as: Should I talk to my pregnant belly / newborn? Is that going to feel weird? (Yes, and absolutely.) How do I help baby sleep well? (Start with the 45-minute rule.) How can I instill a love of learning in my child? (By using specific types of praise and criticism.) What will boost my child’s success in school? (Play that requires self-control, like make-believe.) My baby loves videos and cell-phone games. That’s cool, right? (If you play, too.) What tamps down temper tantrums? (Naming emotions out loud.) My sweet baby just hit a playmate / lied to me about un-potting the plant / talked back. Now what? (Choose one of three logical consequences.) How do I get through an entire day of this? (With help. Lots of help.) Who knew babies were so funny? (They are!) Whether you read the book front to back or skip around, Zero to Five will help you make the best of the tantrums (yours and baby’s), moments of pure joy, and other surprises along the totally-worth-it journey of parenting.
Download or read book Die with Zero written by Bill Perkins and published by Mariner Books. This book was released on 2020 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A startling new philosophy and practical guide to getting the most out of your money-and out of life-for those who value memorable experiences as much as their earnings"--
Download or read book Why Startups Fail written by Tom Eisenmann and published by Crown Currency. This book was released on 2021-03-30 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you want your startup to succeed, you need to understand why startups fail. “Whether you’re a first-time founder or looking to bring innovation into a corporate environment, Why Startups Fail is essential reading.”—Eric Ries, founder and CEO, LTSE, and New York Times bestselling author of The Lean Startup and The Startup Way Why do startups fail? That question caught Harvard Business School professor Tom Eisenmann by surprise when he realized he couldn’t answer it. So he launched a multiyear research project to find out. In Why Startups Fail, Eisenmann reveals his findings: six distinct patterns that account for the vast majority of startup failures. • Bad Bedfellows. Startup success is thought to rest largely on the founder’s talents and instincts. But the wrong team, investors, or partners can sink a venture just as quickly. • False Starts. In following the oft-cited advice to “fail fast” and to “launch before you’re ready,” founders risk wasting time and capital on the wrong solutions. • False Promises. Success with early adopters can be misleading and give founders unwarranted confidence to expand. • Speed Traps. Despite the pressure to “get big fast,” hypergrowth can spell disaster for even the most promising ventures. • Help Wanted. Rapidly scaling startups need lots of capital and talent, but they can make mistakes that leave them suddenly in short supply of both. • Cascading Miracles. Silicon Valley exhorts entrepreneurs to dream big. But the bigger the vision, the more things that can go wrong. Drawing on fascinating stories of ventures that failed to fulfill their early promise—from a home-furnishings retailer to a concierge dog-walking service, from a dating app to the inventor of a sophisticated social robot, from a fashion brand to a startup deploying a vast network of charging stations for electric vehicles—Eisenmann offers frameworks for detecting when a venture is vulnerable to these patterns, along with a wealth of strategies and tactics for avoiding them. A must-read for founders at any stage of their entrepreneurial journey, Why Startups Fail is not merely a guide to preventing failure but also a roadmap charting the path to startup success.
Download or read book A World of Three Zeros written by Muhammad Yunus and published by PublicAffairs. This book was released on 2017-09-26 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A winner of the Nobel Peace Prize and bestselling author of Banker to the Poor offers his vision of an emerging new economic system that can save humankind and the planet Muhammad Yunus, who created microcredit, invented social business, and earned a Nobel Peace Prize for his work in alleviating poverty, is one of today's most trenchant social critics. Now he declares it's time to admit that the capitalist engine is broken -- that in its current form it inevitably leads to rampant inequality, massive unemployment, and environmental destruction. We need a new economic system that unleashes altruism as a creative force just as powerful as self-interest. Is this a pipe dream? Not at all. In the last decade, thousands of people and organizations have already embraced Yunus's vision of a new form of capitalism, launching innovative social businesses designed to serve human needs rather than accumulate wealth. They are bringing solar energy to millions of homes in Bangladesh; turning thousands of unemployed young people into entrepreneurs through equity investments; financing female-owned businesses in cities across the United States; bringing mobility, shelter, and other services to the rural poor in France; and creating a global support network to help young entrepreneurs launch their start-ups. In A World of Three Zeros, Yunus describes the new civilization emerging from the economic experiments his work has helped to inspire. He explains how global companies like McCain, Renault, Essilor, and Danone got involved with this new economic model through their own social action groups, describes the ingenious new financial tools now funding social businesses, and sketches the legal and regulatory changes needed to jumpstart the next wave of socially driven innovations. And he invites young people, business and political leaders, and ordinary citizens to join the movement and help create the better world we all dream of.
Download or read book A Very Stable Genius written by Philip Rucker and published by Penguin. This book was released on 2020-01-21 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: The instant #1 bestseller. “This taut and terrifying book is among the most closely observed accounts of Donald J. Trump’s shambolic tenure in office to date." - Dwight Garner, The New York Times Washington Post national investigative reporter Carol Leonnig and White House bureau chief Philip Rucker, both Pulitzer Prize winners, provide the definitive insider narrative of Donald Trump’s presidency “I alone can fix it.” So proclaimed Donald J. Trump on July 21, 2016, accepting the Republican presidential nomination and promising to restore what he described as a fallen nation. Yet as he undertook the actual work of the commander in chief, it became nearly impossible to see beyond the daily chaos of scandal, investigation, and constant bluster. In fact, there were patterns to his behavior and that of his associates. The universal value of the Trump administration was loyalty—not to the country, but to the president himself—and Trump’s North Star was always the perpetuation of his own power. With deep and unmatched sources throughout Washington, D.C., Carol Leonnig and Philip Rucker reveal the forty-fifth president up close. Here, for the first time, certain officials who felt honor-bound not to divulge what they witnessed in positions of trust tell the truth for the benefit of history. A peerless and gripping narrative, A Very Stable Genius not only reveals President Trump at his most unvarnished but shows how he tested the strength of America’s democracy and its common heart as a nation.
Download or read book The Zero Marginal Cost Society written by Jeremy Rifkin and published by Macmillan + ORM. This book was released on 2014-04-01 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The New York Times–bestselling author describes how current trends will create an era when anything and everything is available for almost nothing. In The Zero Marginal Cost Society, New York Times–bestselling author Jeremy Rifkin uncovers a paradox at the heart of capitalism that has propelled it to greatness but is now taking it to its death—the inherent entrepreneurial dynamism of competitive markets that drives productivity up and marginal costs down, enabling businesses to reduce the price of their goods and services in order to win over consumers and market share. (Marginal cost is the cost of producing additional units of a good or service, if fixed costs are not counted.) While economists have always welcomed a reduction in marginal cost, they never anticipated the possibility of a technological revolution that might bring marginal costs to near zero, making goods and services priceless, nearly free, and abundant, and no longer subject to market forces. Now, a formidable new technology infrastructure—the Internet of things (IoT)—is emerging with the potential of pushing large segments of economic life to near zero marginal cost in the years ahead. Rifkin describes how the Communication Internet is converging with an Energy Internet and Logistics Internet to create a new technology platform that connects all. There are billions of sensors feeding Big Data into an IoT global neural network. Prosumers can connect to the network and use Big Data, analytics, and algorithms to accelerate efficiency, dramatically increase productivity, and lower the marginal cost of producing and sharing a wide range of products and services to near zero, just like they now do with information goods. The plummeting of marginal costs is spawning a hybrid economy—part capitalist market and part Collaborative Commons—with far reaching implications for society, according to Rifkin. Hundreds of millions of people are already transferring parts of their economic lives to the global Collaborative Commons. Prosumers are plugging into the IoT and making and sharing their own information, entertainment, green energy, and 3D-printed products at near zero marginal cost. Students are enrolling in free massive open online courses (MOOCs) that operate at near zero marginal cost. Social entrepreneurs are even bypassing the banking establishment and using crowdfunding to finance startup businesses as well as creating alternative currencies in the fledgling sharing economy. In this new world, social capital is as important as financial capital, access trumps ownership, sustainability supersedes consumerism, cooperation ousts competition, and “exchange value” in the capitalist marketplace is increasingly replaced by “sharable value” on the Collaborative Commons. Rifkin concludes that capitalism will remain with us, albeit in an increasingly streamlined role, primarily as an aggregator of network services and solutions, allowing it to flourish as a powerful niche player in the coming era. We are, however, says Rifkin, entering a world beyond markets where we are learning how to live together in an increasingly interdependent global Collaborative Commons.
Download or read book An Astronaut s Guide to Life on Earth written by Chris Hadfield and published by Little, Brown. This book was released on 2013-10-29 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Travel to space and back with astronaut Chris Hadfield's "enthralling" bestseller as your eye-opening guide (Slate). Colonel Chris Hadfield has spent decades training as an astronaut and has logged nearly 4000 hours in space. During this time he has broken into a Space Station with a Swiss army knife, disposed of a live snake while piloting a plane, and been temporarily blinded while clinging to the exterior of an orbiting spacecraft. The secret to Col. Hadfield's success-and survival-is an unconventional philosophy he learned at NASA: prepare for the worst- and enjoy every moment of it. In An Astronaut's Guide to Life on Earth, Col. Hadfield takes readers deep into his years of training and space exploration to show how to make the impossible possible. Through eye-opening, entertaining stories filled with the adrenaline of launch, the mesmerizing wonder of spacewalks, and the measured, calm responses mandated by crises, he explains how conventional wisdom can get in the way of achievement — and happiness. His own extraordinary education in space has taught him some counterintuitive lessons: don't visualize success, do care what others think, and always sweat the small stuff. You might never be able to build a robot, pilot a spacecraft, make a music video or perform basic surgery in zero gravity like Col. Hadfield. But his vivid and refreshing insights will teach you how to think like an astronaut, and will change, completely, the way you view life on Earth — especially your own. "Hadfield proves himself to be not only a fierce explorer of the universe, but also a deeply thoughtful explorer of the human condition." —Maria Popova, Brain Pickings
Download or read book Ending Fossil Fuels written by Holly Jean Buck and published by Verso Books. This book was released on 2021-11-16 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ending the fossil fuel industry is the only credible path for climate policy Around the world, countries and companies are setting net-zero carbon emissions targets. But what will it mean if those targets are achieved? One possibility is that fossil fuel companies will continue to produce billions of tons of atmospheric CO2 while relying on a symbiotic industry to scrub the air clean. Focusing on emissions draws our attention away from the real problem: the point of production. The fossil fuel industry must come to an end but will not depart willingly; governments must intervene. By embracing a politics of rural-urban coalitions and platform governance, climate advocates can build the political power needed to nationalize the fossil fuel industry and use its resources to draw carbon out of the atmosphere.
Download or read book How to Avoid a Climate Disaster written by Bill Gates and published by Vintage. This book was released on 2021-02-16 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: #1 NEW YORK TIMES BEST SELLER • In this urgent, authoritative book, Bill Gates sets out a wide-ranging, practical—and accessible—plan for how the world can get to zero greenhouse gas emissions in time to avoid a climate catastrophe. Bill Gates has spent a decade investigating the causes and effects of climate change. With the help of experts in the fields of physics, chemistry, biology, engineering, political science, and finance, he has focused on what must be done in order to stop the planet's slide to certain environmental disaster. In this book, he not only explains why we need to work toward net-zero emissions of greenhouse gases, but also details what we need to do to achieve this profoundly important goal. He gives us a clear-eyed description of the challenges we face. Drawing on his understanding of innovation and what it takes to get new ideas into the market, he describes the areas in which technology is already helping to reduce emissions, where and how the current technology can be made to function more effectively, where breakthrough technologies are needed, and who is working on these essential innovations. Finally, he lays out a concrete, practical plan for achieving the goal of zero emissions—suggesting not only policies that governments should adopt, but what we as individuals can do to keep our government, our employers, and ourselves accountable in this crucial enterprise. As Bill Gates makes clear, achieving zero emissions will not be simple or easy to do, but if we follow the plan he sets out here, it is a goal firmly within our reach.
Download or read book Why Nations Fail written by Daron Acemoglu and published by Crown Currency. This book was released on 2013-09-17 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEW YORK TIMES AND WALL STREET JOURNAL BESTSELLER • From two winners of the 2024 Nobel Prize in Economic Sciences, “who have demonstrated the importance of societal institutions for a country’s prosperity” “A wildly ambitious work that hopscotches through history and around the world to answer the very big question of why some countries get rich and others don’t.”—The New York Times FINALIST: Financial Times and Goldman Sachs Business Book of the Year Award • ONE OF THE BEST BOOKS OF THE YEAR: The Washington Post, Financial Times, The Economist, BusinessWeek, Bloomberg, The Christian Science Monitor, The Plain Dealer Why are some nations rich and others poor, divided by wealth and poverty, health and sickness, food and famine? Is it culture, the weather, or geography that determines prosperity or poverty? As Why Nations Fail shows, none of these factors is either definitive or destiny. Drawing on fifteen years of original research, Daron Acemoglu and James Robinson conclusively show that it is our man-made political and economic institutions that underlie economic success (or the lack of it). Korea, to take just one example, is a remarkably homogenous nation, yet the people of North Korea are among the poorest on earth while their brothers and sisters in South Korea are among the richest. The differences between the Koreas is due to the politics that created those two different institutional trajectories. Acemoglu and Robinson marshal extraordinary historical evidence from the Roman Empire, the Mayan city-states, the Soviet Union, the United States, and Africa to build a new theory of political economy with great relevance for the big questions of today, among them: • Will China’s economy continue to grow at such a high speed and ultimately overwhelm the West? • Are America’s best days behind it? Are we creating a vicious cycle that enriches and empowers a small minority? “This book will change the way people think about the wealth and poverty of nations . . . as ambitious as Jared Diamond’s Guns, Germs, and Steel.”—BusinessWeek
Download or read book The Sum of Us written by Heather McGhee and published by One World. This book was released on 2022-02-08 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEW YORK TIMES BESTSELLER • LONGLISTED FOR THE NATIONAL BOOK AWARD • One of today’s most insightful and influential thinkers offers a powerful exploration of inequality and the lesson that generations of Americans have failed to learn: Racism has a cost for everyone—not just for people of color. WINNER OF THE PORCHLIGHT BUSINESS BOOK AWARD • ONE OF THE BEST BOOKS OF THE YEAR: Time, The Washington Post, St. Louis Post-Dispatch, Ms. magazine, BookRiot, Library Journal “This is the book I’ve been waiting for.”—Ibram X. Kendi, #1 New York Times bestselling author of How to Be an Antiracist Look for the author’s podcast, The Sum of Us, based on this book! Heather McGhee’s specialty is the American economy—and the mystery of why it so often fails the American public. From the financial crisis of 2008 to rising student debt to collapsing public infrastructure, she found a root problem: racism in our politics and policymaking. But not just in the most obvious indignities for people of color. Racism has costs for white people, too. It is the common denominator of our most vexing public problems, the core dysfunction of our democracy and constitutive of the spiritual and moral crises that grip us all. But how did this happen? And is there a way out? McGhee embarks on a deeply personal journey across the country from Maine to Mississippi to California, tallying what we lose when we buy into the zero-sum paradigm—the idea that progress for some of us must come at the expense of others. Along the way, she meets white people who confide in her about losing their homes, their dreams, and their shot at better jobs to the toxic mix of American racism and greed. This is the story of how public goods in this country—from parks and pools to functioning schools—have become private luxuries; of how unions collapsed, wages stagnated, and inequality increased; and of how this country, unique among the world’s advanced economies, has thwarted universal healthcare. But in unlikely places of worship and work, McGhee finds proof of what she calls the Solidarity Dividend: the benefits we gain when people come together across race to accomplish what we simply can’t do on our own. The Sum of Us is not only a brilliant analysis of how we arrived here but also a heartfelt message, delivered with startling empathy, from a black woman to a multiracial America. It leaves us with a new vision for a future in which we finally realize that life can be more than a zero-sum game. LONGLISTED FOR THE ANDREW CARNEGIE MEDAL