It is so hard to take a definative stance on an issue such as domestic spying. yes, it prevents terrorism, but at what cost. The freedoms of americans are at jeopardy by both government (spying) and terrorists (attacks), so who's to judge which is worse. I honestly cannot take a stance on an issue such as this because there are so many factors involved that i can't even process together well enough to make a clear decision. I would say let the government spy on those they have concrete suspicion of, but not those that are law abiding citizens. there's my two cents.