FORT MEADE, MD - JUNE 1: Daniel Ellsberg, former United States military analyst considered the Pentagon Papers whistleblower, speaks during mass rally in support for PFC Bradley Manning on June 1, 2013 in Fort Meade, Maryland. Manning's court martial is set to begin Monday June 3, 2013. Hundreds of supporters marched in support of Manning for giving classified documents to the anti-secrecy groups WikiLeaks.  (Photo by Lexey Swall/Getty Images)