Dave DaviesDave Davies is a guest host for NPR's Fresh Air with Terry Gross.
A U.S. Marine from the 1st Battalion, 8th Marines, Alpha Company looks out as an evening storm gathers above an outpost near Kunjak, in southern Afghanistan's Helmand province.
Ted Kaczynski is flanked by federal agents as he is led from the federal courthouse in Helena, Mont., on April 4, 1996. Kaczynski is now serving a life sentence in prison for the bombings.
John Youngbear/Associated Press
Author Michael Wallis says there are modern lessons to learn from the Donner Party — primarily about the fatal combination of ignorance and arrogance. Above, an undated drawing of the pioneers, looking to make their way West.
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A polling station in Oakmont, Pa., on Nov. 6, 2012. Winning a presidential nomination includes mastering complex rules about delegates, and Pennsylvania's rules are among the most complicated.
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