The Justice Department has opened an investigation into reports that a trove of apparently classified U.S. intelligence documents was leaked online from the Pentagon, the Defense Department said on Sunday night.
Driving the news: Pentagon deputy press secretary Sabrina Singh said in an emailed statement that officials are assessing the validity of the material, which the New York Times reports indicates that U.S. intelligence has penetrated Russia's military and also apparently spied on allies including Israel, South Korea and Ukraine.
