They'll let these provisions lapse right after they pass the Puppy Strangulation Act of 2011. Nobody wants to be accused of 'weakening' Patriot if another attack happens, even though there's little evidence added safeguards would seriously hamper intel gathering.
And, of course, they just did. Increasingly the fourth amendment is joining the 2nd and the 10th in the "just kidding" category of Constitutional provisions not taken seriously. From Al Franken to Barack Obama, Democrats who once opposed the most egregious portions of the Patriot Act now voted for its rushed renewal without even a floor debate or possibility of amendment.