I have to back up BSF on this. The collection is important because it enables use. Google (or a rogue Google employee) could use your personal information to embarrass you, blackmail you, maybe steal from you. If they did, you would have all kinds of rights to sue the shit out of Google and recover a billion dollars. Your rights against Google's treachery would be protected by the courts and the government.
The government's ability to use personal information against a citizen goes far beyond anything Google could ever begin to do. And even more critically, if the government does misuse the information, you are quite likely powerless to stop them. The government can wreck your life, put you in jail, send agents to raid your house, get your fired from your job - the list goes on.
The 4th amendment prohibition against general warrants was enacted specifically to prevent the authorities from going on fishing expeditions to collect information - data - that they could use against people previously unsuspected of any crime. The 4th amendment was intended to prevent the data collection from ever happening in the first place. In my opinion, there is no way to interpret the 4th amendment to allow the government to hoover up vast amounts of evidence and hold on to it "just in case".
There is a reason that the Germans have very strong digital privacy laws. They - at least the Eastern Germans - know exactly what it is like to live in a country run by secret police who are constantly putting together a dossier on every citizen just in case they need it one day.
I'm definitely not saying collection isn't important. But part of what I'm getting at is that "use" and "collection" are being confused in my opinion. For example, Snowden claims the government is exercising "tyranny in the form of social control and manipulation" - but all the evidence is simply collection.
Couple more things. First, Google HAS abused the data they have, they have tracked people illegally, and those people have NOT won billions of dollars. Instead Google has had to pay fines. Same with Microsoft. Same with Apple. The number of times one of these companies has abused your private data absolutely dwarfs the number of times the government has done so. Not for lack of effort, but due to capability. On the government side, these are relatively young programs with little real-world success.
Second, you have more power to defend yourself against the government in many cases than you do Google, because when you sign up for Google or Facebook or whatever, you sign away almost all of your rights as you click yes without reading the 128 "accept all conditions" dialogue. TOS's dictate that misuse, vaguely stated, forfeits all your rights. It states no content is yours once entered or altered by these resources. It says they may review content without legal requirement or basis. It states "opting out" is a feature, not a right. Those control panels mentioned below have no actual technical benefit to you, it's just a non-enforceable request you make that can be legally ignored. If the government uses records collected via these programs without due process or probable cause, you have NOT signed away all of your rights and you can argue such information inadmissible should the shit really hit the fan.
Here's a real world situation. We detected a criminal in the US and got a temporary IP address. He'd been using a computer there on Comcast and we tracked his IP - but not to an address. The process to extract retained data from Comcast, totally legally, took 4 days. By then he was gone, cops went to the house and found shell casings and evidence of drug packaging. Current retrieval times to locally held data would have been in the minutes instead of days.
So technically, it's extremely frustrating to know this data is out there and is legally available, but because it isn't collated, collected in a standard way, protected via a set of established rules, etc - you end up wasting massive amounts of time bouncing between different systems and authorities to obtain it. What if you knew, for a fact, that information about the Boston bomber could have been collected in time to prevent that attack because he was a suspect prior to the bombing. And that all this data collection already happens - it's just all over the place.
To me it's about access and use, not collection. This isn't the 50's with humans actively reading and listening during collection. New rules need to be in place. And to be honest, being the country the pretty much owns the internet, to me, should entitle us to some benefits that prevent harm against our country.
But there are TONS of improvements in use that could be done. Encryption is where it's at. It should be more open. It should be reviewed by public entities. There are lots of things that have been done wrong.