Rand Paul digs in on NSA surveillance

Sen. Rand Paul is at it again.

More than two years after a 13 hour filibuster, the Kentucky senator and 2016 GOP presidential contender is back on the Senate floor. This time, he's protesting the National Security Agency's dragnet surveillance programs targeting Americans.

"There comes a time in the history of nations when fear and complacency allow power to accumulate and liberty and privacy to suffer. That time is now and I will not let the Patriot act, the most unpatriotic of acts go unchallenged," Paul said at the opening of his remarks.

The Senate is considering this week whether to reauthorize a crucial section of the Patriot Act or reform the law to rein in the government's sweeping powers to collect phone metadata on millions of Americans in an effort t