I have a related question: Is there some kind of database anyone is keeping that helps the public figure out what information companies have been ordered to pr

I have a related question: Is there some kind of database anyone is keeping that helps the public figure out what information companies have been ordered to produce in the past, and what they have actually produced? (I don't specifically mean NSLs here -- subpoenas and any other things would all be included in my question.) This would be useful in several respects, because it would not only provide a check on the government, but it would also provide a check on the companies. For example, can I be sure that if I delete something, and a company with my data claims it is deleted in 60 days, can I rely on it to be true? If the company has been ordered to produce such information in the past, knowing whether or not it has done so would seem to be the most foolproof way to figure out how much data the company retains or discards. Is anyone keeping such records publicly (insofar as the information is available)?