Drudge has a link to this up:
The University of Texas is evacuating all of its buildings due to threats on campus after a caller claiming to be with al-Qaida said he placed bombs all over campus that would go off around 10 a.m. — which has since passed.
http://www.kxan.com/dpp/news/local/austin/threat-evacuates-all-of-ut-campus
The time had already passed when they ordered the evacuation? Seems odd, though I do get it with such threats... There's just no way -not- to do it. The big clue though is that Al Queda doesn't call ahead.