National Why Anti-Terror Technology Has Its Limits 7:47am December 12, 2015 News Technology U.S. National Security Digital Life Share URL copied to clipboard! Copyright 2015 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More Weekend Edition Saturday World News Chileans weigh a new constitution by Scott Simon Sports Saturday sports: Serena Williams' dramatic U.S. Open by Tom Goldman 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate