Open-source intelligence
Director of National Intelligence James Clapper depends on open source information in addition to classified material, to provide American decision-makers with objective information. There is a concern that social media campaigns orchestrated by overseas powers could distort open-source intelligence gathering, some U.S. officials say.
Open-source intelligence
I once heard the post-9/11 era referred to as the “golden age of SIGINT.” SIGINT, shorthand for signals intelligence, is a form of intelligence gathering that involves the collection of signals. The reference to its golden age is based on the communications explosion that occurred after the turn of the millennium coupled with the wars in Afghanistan and Iraq, which enabled SIGINT to provide enhanced quality and value to the intelligence community (IC).
Director of National Intelligence James Clapper depends on open source information in addition to classified material, to provide American decision-makers with objective information. There is a concern that social media campaigns orchestrated by overseas powers could distort open-source intelligence gathering, some U.S. officials say. 
I once heard the post-9/11 era referred to as the “golden age of SIGINT.” SIGINT, shorthand for signals intelligence, is a form of intelligence gathering that involves the collection of signals. The reference to its golden age is based on the communications explosion that occurred after the turn of the millennium coupled with the wars in Afghanistan and Iraq, which enabled SIGINT to provide enhanced quality and value to the intelligence community (IC).