This 2010 image released by G.P. Putnam Sons shows author Tom Clancy in Huntingtown, Md. Clancy, the bestselling author of &quot;The Hunt for Red October&quot; and other wildly successful technological thrillers, has died. He was 66. Penguin Group (USA) said Wednesday that Clancy died Tuesday in Baltimore. The publisher did not disclose a cause of death. (AP Photo/G.P. Putnam Sons, David Burnett)