They who give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.The arguement from the administration sounds so blatantly weak to me that I can't even stand it. We have to spy (while disregarding your freedoms protected by the constitution) on Americans to protect Americans. There are so many legal ways that this could have been done. Many others have written much more eloquently than I can on this issue. Go read Eschaton or DailyKos, or watch some clips on Crooks and Liars.
I think that this one isn't going to slide. I could give two shits what Bush is going to say on Iraq tonight. All I want to know is why he thinks that he is above the constitution. I think that others feel the same way. It is time for congress to start doing its job, and provide some oversight of the executive branch.
The American people deserve hearings on this issue, and deserve an public explanation in front of congress.
UPDATE: Go read Americablog, he sums up exactly what I am feeling.