Yep, and many of those illegals are Muslims. In fact, in 2002 alone about 8,000 of all illegals arrested - ones that we actually caught - were special interest aliens. .....which means that they were from countries with known ties to terror.
Considering these #'s, it's not unreasonable to conclude that well over 100,000 illegal Muslims have entered the U.S. since 9/11.