The documents detail the origins of heightened electronic surveillance after 9/11 . Intelligence chief says President George W. Bush authorized the moves . Since former NSA contractor Edward Snowden leaked thousands of highly classified documents this year , the president and the intelligence community have promised greater public scrutiny of spying and anti-terrorist operations . Obama administration officials say they are not trying to hide any information from Congress or the public about what happened in September 2001.
The documents detail the origins of heightened electronic surveillance after 9/11 . Intelligence chief says President George W. Bush authorized the moves . Obama administration officials say they are not trying to hide any information from Congress or the public about what happened in September 2001.