EXACTLY! There's no need to give up liberty to have security...That false choice is the fallacy that the PATRIOT ACT supporters try to get people to swallow, and once they've swallowed that lie, then it's easy to convince them that the restrictions on liberty are NEEDED!
The common thread in all of these arguments is that the Patriot Act somehow restricts liberty. But it doesn't, and no one has persuasively shown otherwise. It does make it harder for terrorists and criminals to plot, scheme, and act without interference from law enforcement. Thats a good thing, not a bad thing.