A U.S. soldier goes on trial today for allegedly leaking hundreds of thousands of classified documents to the WikiLeaks Web site.
Pvt. Bradley Manning faces life in prison if a military judge at Fort Meade, Maryland finds him guilty.
Manning was arrested in 2010. He has admitted giving the information to WikiLeaks, saying he wanted to spark public debate on U.S. policy and the wars in Afghanistan and Iraq.
But prosecutors will argue that he put the lives of U.S. soldiers in danger.
The leaked information includes videos of a U.S. helicopter strike in Baghdad that killed civilians.
Manning’s backers say he exposed mistakes the Pentagon would never admit.