What do we know about NSA snooping?

Well, listening to the TV we don't know much.  Here is what they could do, especially after spending $1 billion on a fancy data center in Utah.
  They can capture and save the billing records of every phone call on the planet.  They call it "metadata", but it's the stuff of your phone bill, what numbers you called, how long you talked.  This allows the feds or other snoopers to go into the system with your phone number and learn all the other phone numbers you have called, going back a long time.  They claim it's just phone numbers, but that doesn't matter.  Put your own phone number into Google and Google will return your name and address.  You might have to pay a little money, but heh, the Feds have lots of money.   If the Feds have a phone number, they can get the name without much trouble.   I believe they used the system on the Boston bombers.  It fingered an old associate of Tamerlan Tsarnaev.  The FBI interviewed the associate and shot him dead during the interview.  The FBI claimed self defense, the associate pulled a knife on them, they say.
    Speaking of the Boston Bombers, the FBI had a solid tip from the Russians that the older brother was a terrorist.  FBI claims to have interviewed Tamerlan Tsarnaev, but they didn't bother to pass the tip on to the local police, who usually have better local connections than Washington based FBI guys.  Nor did they bother to put Tamerlan on a no-fly list, and they let him fly to Russia and back, and hobnob with Chechen terrorists without tipping off the Russians.
   The Feds can read all your email, see what websites you visit, how often and how long, and see all your Facebook, Myspace and where ever postings.  If you post anything on suspicious websites, that makes you suspicious too.   
  I don't think they can tap (listen to conversations) on every phone on the planet, yet.
  NSA must have direct electronic connections into the phone system computers, as well as all the internet backbone companies.  I heard the back bone companies on TV deny this, but I don't believe them. 
   This "FISA" court which is supposed to be "overseeing" NSA, approved all but 10 of 1824 snooping requests. That isn't a court, that's a rubber stamp.
  I don't know where I stand on the NSA thing.  One on hand, being able to drop Osama bin Laden's phone number into the system and see every one he phoned is clearly useful.  On the other hand,  dropping the phone numbers of  anyone the administration dislikes, or conservative bloggers like me, into the system is scary.  Plus Osama Bin Ladin gave up using phones after the ever patriotic New York Times revealed that NSA was tapping his satellite phone.