Retraces in sailboat or small plane the routes taken by the Argonauts, Ulysses, Columbus, Vespucci, Magellan, Elcano, and the Portuguese and Spanish explorers of the Americas.

"This is the colorful and dramatic biography of two of America's most controversial entrepreneurs: Moses Louis Annenberg, 'the racing wire king, ' who built his fortune in racketeering, invested it in publishing, and lost much of it in the biggest tax evasion case in United States history; and his son, Walter, launcher of TV Guide and Seventeen magazines and former ambassador to Great Britain."--Jacket.

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A guide to computer security discusses how the "blackhat community" uses the Internet for destructive purposes and provides information on how to learn from a "blackhat" attack to protect computer networks.