The leaks have been corroborated by the Director of the NSA itself actually, the FAQ could be updated to reflect it:

"To address this shortfall and protect the nation from future terrorist attacks like 9/11, we made several changes to our intelligence efforts and added a number of capabilities. Two of these capabilities are the programs in the news. They were approved by the Administration, Congress, and the Foreign Intelligence Surveillance Court"

http://www.nsa.gov/public_info/speeches_testimonies/25jun13_...