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Looks like these criminals used correct postage, 'cause justice is about to be delivered. Okay, there are no snappy one-liners in this crime scene investigation, but there are explosions, collisions, manhunts and even a cow who was in the wrong place at the wrong time. On the centennial of "The Last Great Train Robbery," we re-examine the evidence to find out how U.S. Postal Inspectors tracked down a band of old school outlaws using cutting edge criminal forensics...and postmarked them for prison.

Guests:

Lynn Heidelbaugh, curator at the Smithsonian National Postal Museum

Chelsea Rose, Director of the Southern Oregon University Laboratory of Anthropology

Kate Winkler Dawson, author of American Sherlock: Murder, Forensics and the Birth of American CSI