past from what they knew about them. i don't think anybody knew publicly how widespread the data collection is. but how is prism, how are prism and blarney different? that's a separate program. >> well first on the database program, you're right, this isn't new. this is "u.s.a. today" article from may 2006. i remember i was on capitol hill when this came out. the headline is, nsa has massive database of americans' phone calls. this story has been around eight years and it's been carefully overseen by the courts and by congress. as for the internet programs, there you need a particularized warrant. that part of the statute, that clapper described last night, section 702 of the foreign intelligence surveillance act which i helped draft. that requires a particularized warrant. if you want to listen to someone who you suspect is overseas. who is a potential terrorist, who is non-american you've got to go to the court and get a specific warrant to listen to