Some of the highest-ranking officials in the U.S. military were subjected to polygraph tests as part of a sweeping leak probe ...

Science says you might as well flip a coin.

Some of the highest-ranking officials in the U.S. military were subjected to polygraph tests as part of a broad investigation ...

Add Yahoo as a preferred source to see more of our stories on Google. The Department of Homeland Security has closed an investigation into seven career staffers at the Cybersecurity and Infrastructure ...

A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. When President Ronald Reagan’s White House threatened thousands of government ...