The FBI will have their photo, fingerprints, and who knows what else. Merely assuming an alias won't protect them for very long.
We had the photos and fingerprints of other terrorists and that didn't stop them. These people are not here to get a job, and they are not here to commit petty crimes. They are here to blow themselves up, and they are not particularly concerned about whether they escape or not. Advocates of closed borders are beginning to sound more one-track than the leaglize drugs mafia. Not EVERY story is about your issue.
- Shane