Because if you fall under suspicion for any number of reasons beyond your control, you can be taken apart by busybody bureaucrats. Remember, the disengenuous part. They need a warrant but it is not your father's warrant. Probable cause is not required. They just have to say you are part of a terrorism investigation.
Add to that the enemy combatant horror (not part of the patriot act or any other act, just Bush's idea) and innocent people are in great danger of spending decades in prison with no opportunity to challenge their imprisonment (not conviction-no trial).
And here I thought that conservatives wanted the government to obey the constitution all the time. I guess that there is no honorable party left but the Libertarians.
Libertarians aren't "honorable" because they aren't honest.
The term "enemy combatant" (and the treatment thereof) wasn't invented by Bush, and you know that full well because I have already educated you on that fact.
It was the Geneva Convention that defined that distinction between legal POW's from that of spies and sabotuers who wear no uniform and carry no military ID (e.g. dog tags) on the battlefield (which can include civilian infrastructure areas that are not related to open armed combat).
The Geneva Convention is *older* than George W. Bush, too...so it's a bit hard to accept that he suddenly had this "idea" for treating such spies and sabotuers as prescribed by the Geneva Convention.
In short, you and your fellow Libertarians routinely lie about such things even after you've been caught perpetrating such fabrications.
HINT: that's not "honorable."