From thehill.com... (his head was down from what I saw of the video - looked very concerned about what he was saying and there was a "pregnant pause")...
"Does the NSA collect any type of data at all on millions or hundreds of millions of Americans?" committee member Sen. Ron Wyden (D-Ore.) asked Clapper during the March 12 hearing.
In response, Clapper replied quickly: "No, sir."
"There are cases where they could inadvertently perhaps collect [intelligence on Americans], but not wittingly," the U.S. intelligence chief told Wyden and the rest of the committee.
Read more: http://thehill.com/blogs/defcon-hill/policy-and-strategy/304009-clapper-denied-nsa-surveillance-in-us-weeks-before-verizon-tracking-program-began-#ixzz2VV8kTT5L
More from this Guardian article...
The act also gives the director of national intelligence and the attorney general power to permit obtaining intelligence information, and indemnifies internet companies against any actions arising as a result of co-operating with authorities' requests.
In short, where previously the NSA needed individual authorisations, and confirmation that all parties were outside the USA, they now need only reasonable suspicion that one of the parties was outside the country at the time of the records were collected by the NSA.
The document also shows the FBI acts as an intermediary between other agencies and the tech companies, and stresses its reliance on the participation of US internet firms, claiming "access is 100% dependent on ISP provisioning".
In the document, the NSA hails the PRISM program as "one of the most valuable, unique and productive accesses for NSA".
It boasts of what it calls "strong growth" in its use of the PRISM program to obtain communications. The document highlights the number of obtained communications increased in 2012 by 248% for Skype – leading the notes to remark there was "exponential growth in Skype reporting; looks like the word is getting out about our capability against Skype". There was also a 131% increase in requests for Facebook data, and 63% for Google.