Check out 0-2:00 for Rand Paul's speech, the rest of it isn't really worth watching. I suspect that the 'seven days of food' criterion is probably a bit hyperbolic, but the bottom line is that we are giving our government the power to suspend the liberties of persons suspected of a crime, whether US citizens or not. A good measure of the freedom of a country is how it treats its dissident members, and therefore US is well on its way towards being much less free.
http://www.youtube.com/watch?v=pK0pEFSX7Ns