"I think that was a useful tool to keep us safe and also to protect civil liberties," Bush said.
European Parliament passes resolution calling on member states to recognize the former NSA contractor as a whistleblower.
The practice of bulk telephone metadata collection was revealed by Edward Snowden.
The bill would end spy agencies' bulk collections, setting up a potential showdown with the Senate over the program that expires on June 1.
Germany's BND intelligence agency sends mammoth amounts of phone and text data to the NSA each month.
A federal appeals court on Thursday said a National Security Agency program that collected the records of millions of Americans' phone calls was not authorized by Congress.
Counterterrorism legislation could increase tensions with Silicon Valley and the U.S.
Nearly two years after the Snowden revelations, intelligence agencies are being instructed to curtail their surveillance activities.
NSA reports released through FOIA lawsuit detail range of unlawful surveillance practices.
The U.S.A. Freedom Act did not receive enough votes to move forward in the Senate.
In surprise move, Sen. Harry Reid puts USA Freedom Act on the Senate docket Wednesday, lining it up for a vote as early as next week.
The metadata in your photographs includes a lot on information you may not realize you're sharing