Edgar Hoover by a member of his personal staff—his former assistant, Paul Letersky—offers unprecedented, “clear-eyed and compelling” (Mark Olshaker, coauthor of Mindhunter) insight into an American legend.The 1960s and 1970s were arguably among America’s most turbulent post-Civil War decades. While the Vietnam War continued seemingly without end, protests and riots ravaged most cities, the Kennedys and MLK were assassinated, and corruption found its way to the highest levels of politics, culminating in Watergate. In 1965, at the beginning of the chaos, twenty-two-year-old Paul Letersky was assigned to assist the legendary FBI director J. Edgar Hoover who’d just turned seventy and had, by then, led the Bureau for an incredible forty-one years. Hoover was a rare and complex man who walked confidently among the most powerful. His personal privacy was more tightly guarded than the secret “files” he carefully collected—and that were so feared by politicians and celebrities. Through Letersky’s close working relationship with Hoover, and the trust and confidence he gained from Hoover’s most loyal senior assistant, Helen Gandy, Paul became one of the few able to enter the Director’s secretive—and sometimes perilous—world. Since Hoover’s death half a century ago, millions of words have been written about the man and hundreds of hours of TV dramas and A-list Hollywood films produced. But until now, there has been virtually no account from someone who, for a period of years, spent hours with the Director on a daily basis. Balanced, honest, and keenly observed, this “vivid, foibles-and-all portrait of the fabled scourge of gangsters, Klansmen, and communists” (The Wall Street Journal) sheds new light on one of the most powerful law enforcement figures in American history.

    They distill more than 20 years of research and first-hand accounts from the most biodiverse ecosystems on Earth into straightforward principles and guidance for confronting our culture of hyper-novelty.For evolutionary biologists Heather Heying and Bret Weinstein, the cause of our woes is clear: the modern world is out of sync with our ancient brains and bodies. We evolved to live in clans, but today most people don't even know their neighbors' names. Differences between the sexes once served a necessary evolutionary purpose, but today many dismiss the concept of biological sex as offensive. The cognitive dissonance spawned by trying to live in a society we're not built for is killing us.

    Now he makes the case that living on Mars is not just plausible, but inevitable.It sounds like science fiction, but Stephen Petranek considers it fact: Within twenty years, humans will live on Mars. We'll need to. In this sweeping, provocative book that mixes business, science, and human reporting, Petranek makes the case that living on Mars is an essential back-up plan for humanity and explains in fascinating detail just how it will happen.The race is on. Private companies, driven by iconoclastic entrepreneurs, such as Elon Musk, Jeff Bezos, Paul Allen, and Sir Richard Branson; Dutch reality show and space mission Mars One; NASA; and the Chinese government are among the many groups competing to plant the first stake on Mars and open the door for human habitation. Why go to Mars? Life on Mars has potential life-saving possibilities for everyone on earth. Depleting water supplies, overwhelming climate change, and a host of other disasters — from terrorist attacks to meteor strikes — all loom large. We must become a space-faring species to survive. We have the technology not only to get humans to Mars, but to convert Mars into another habitable planet. It will likely take 300 years to "terraform" Mars, as the jargon goes, but we can turn it into a veritable second Garden of Eden. And we can live there, in specially designed habitations, within the next twenty years.In this exciting chronicle, Petranek introduces the circus of lively characters all engaged in a dramatic effort to be the first to settle the Red Planet. How We'll Live on Mars brings firsthand reporting, interviews with key participants, and extensive research to bear on the question of how we can expect to see life on Mars within the next twenty years.

    Whereas a regular aerial camera can only capture a small patch of ground at any given time, this system—and its most powerful iteration, Gorgon Stare—allow operators to track thousands of moving targets at once, both forwards and backwards in time, across whole city-sized areas. When fused with big-data analysis techniques, this network can be used to watch everything simultaneously, and perhaps even predict attacks before they happen.      In battle, Gorgon Stare and other systems like it have saved countless lives, but when this technology is deployed over American cities—as it already has been, extensively and largely in secret—it has the potential to become the most nightmarishly powerful visual surveillance system ever built. While it may well solve serious crimes and even help ease the traffic along your morning commute, it could also enable far more sinister and dangerous intrusions into our lives. This is closed-circuit television on steroids. Facebook in the heavens.       Drawing on extensive access within the Pentagon and in the companies and government labs that developed these devices, Eyes in the Sky reveals how a top-secret team of mad scientists brought Gorgon Stare into existence, how it has come to pose an unprecedented threat to our privacy and freedom, and how we might still capitalize on its great promise while avoiding its many perils.

    In this book, William Cook takes readers on a mathematical excursion, picking up the salesman's trail in the 1800s when Irish mathematician W. R. Hamilton first defined the problem, and venturing to the furthest limits of today's state-of-the-art attempts to solve it. He also explores its many important applications, from genome sequencing and designing computer processors to arranging music and hunting for planets.In Pursuit of the Traveling Salesman travels to the very threshold of our understanding about the nature of complexity, and challenges you yourself to discover the solution to this captivating mathematical problem.