U.S. sues Edward Snowden over new book, cites non-disclosure agreements

The United States filed a lawsuit on Tuesday against former NSA contractor Edward Snowden, who in 2013 leaked secret documents about U.S. telephone and Internet surveillance, saying his new book violates non-disclosure agreements.

The Justice Department said Snowden published his book, "Permanent Record," without submitting it to intelligence agencies for review, adding that speeches given by Snowden also violated nondisclosure agreements.

The United States is seeking all proceeds earned by Snowden for the book, the Justice Department said.