Here's a question with no easy answer: How do you hold the nation's spy agencies accountable — when they control the secrets?
Former National Security Agency contractor Edward Snowden apparently thought the answer was to blow the lid off some of the NSA's highly classified programs. He took documents and shared them with journalists.
But what about Congress? It's supposed to oversee the NSA — and other spy agencies. For the committees charged with that task, it hasn't been easy keeping tabs on the secretive world of federal surveillance.
Georgia Republicans picked their Senate nominee Tuesday night. Former corporate CEO David Perdue will face Democrat Michelle Nunn in the November general election.
Nunn, the daughter of a popular former senator, is among several Democratic female candidates who are showing strength as the party tries to preserve its Senate majority. She's also considered a real contender to turn the Georgia seat Democratic.