American Spies, Then And Now (SLIDESHOW)

07/06/2009 05:12 am ET | Updated May 25, 2011

Walter Ken Myers and his wife Gwendolyn Steingraber Myers have just been accused of spying on the U.S. for nearly thirty years for Castro's Cuba. While a headline-grabbing revelation, they're hardly the first to slip American secrets abroad. From the Rosenbergs to Robert Hanssen, here's a slideshow of some of the best known turncoats in U.S. history:

American Spies Through The Ages