I would certainly like to know more about it too, but whenever the government (regardless of party) throws out details of such things it rarely seems to change anyone's minds. In a different context, I'm quite interested in financial fraud and in discussions with others I've heard over and over that the government never prosecutes anyone in the finance sector. For a while I got into the habit of pointing them to a DoJ website which demonstrates that a surprising number of people on Wall Street have been successfully prosecuted (http://www.stopfraud.gov/news-index.html), but in the end I gave up and just stayed out of those arguments because nobody ever seemed interested in rethinking their position.

I think most people (and I include myself in this) are much better at rationalizing their existing position in spite of new data than they are at re-evaluating their position. Of course this is an endemic problems at institutions like the NSA and in Congress.