Security and Freedom have an inverse relationship. Dramatically increasing one usually has a negative effect on the other.
I agree that this may be going to far, however, the people who are loudest about it are the same ones who complained that Bush should have "done something" to prevent 9-11.
Oh, the hypocrisy from the Left was expected. This isn't even legitimate criticism; it's pure reactionary partisanship. But it doesn't change the fact that it gives the hand-wringers one more distraction to exploit. And it tempts conservatives to invoke "the end justifies the means" arguments.