Re: Legal requests for data
While the situation appears to have improved over the last couple of years, a lot of information requests in the hayday the Patriot Act age were not tied any existing or even pending warrant. That was the purpose of some of the Patriot Act provisions and interpretations. Find the bad guys before they've acted in a way that provides cause for a warrant. It kind of trends toward the Minority Report concept.
The data is mostly the same. All those companies know as much about each of us as we know ourselves. Maybe, with the advent of Big Data pattern analysis, more than we know ourselves. Can the EFF rankings be trusted? Not sure, but they are the best information we have to date, at least in my opinion.