civil liberties
WHAT'S HAPPENING
Opponents said it threatened civil liberties and did little to improve national security.
Big data can only do so much to stop terror attacks, experts say.
And critics are not happy about it.
Sen. Marco Rubio (R-Fla.) says a "majority" of people on the no-fly list may be on the list in error.
The state's landmark new law could show Washington how to protect civil liberties online.