by Andrew Golis

Watch WikiSecrets , FRONTLINE’s investigation into Bradley Manning, Julian Assange and the largest intelligence breach in U.S. history, and The Private Life of Bradley Manning , a profile of the early years of the young soldier now accused of leaking more than half a million classified U.S. government documents.

PFC Bradley Manning has plead guilty to 10 criminal charges related to the leak of more than 500,000 documents to WikiLeaks. Manning spoke today at military hearing in Maryland for over an hour and shed new light on the motive behind the largest single leak of classified information in U.S. history.

Arun Rath has been following the Manning case for FRONTLINE and The World, and spoke to The World’s Marco Werman earlier today about these latest developments. Listen: