Worrisome

Uzair Paracha tried to sneak an al Qaeda operative into the US to conduct terrorist attacks:

A Pakistani man living in Brooklyn confessed in "chilling detail" how he tried to sneak an al Qaeda operative into the U.S. to carry out a deadly chemical attack, a prosecutor charged in opening statements yesterday.
Jurors in Manhattan federal court heard how Uzair Paracha, 25, allegedly agreed to further the terror plot during a series of meetings in Pakistan attended by two al Qaeda members and his father, a businessman now held prisoner at Guantanamo Bay.

Paracha confessed to helping al Qaeda operative Majid Khan in a scheme to obtain U.S. travel documents knowing that Khan sought to carry out terrorist attacks in the US.

UPDATE:
In case it wasn't clear enough, my concern isn't that we're trying Paracha for sneaking terrorists into this country. It's the worry that there are others like Paracha who are successful in getting terrorists into the US that we don't know about. Meanwhile, as reader Sizzle points out in my comments, there are those out there who think that Paracha should be released. They're circulating a petition that claims that his rights are being violated under US law, international law, and anything else that they can think of. They're hoping that something they throw into court papers will somehow stick and get Paracha off, despite the fact that he confessed to taking this action. I'm not quite sure what part of confessed those petitioners think doesn't matter, but this guy tried to bring terrorists into the US. That's criminal activity that undermines US national security and it's something I take seriously and the US government most definitely should take seriously. Of course, Paracha's supporters will somehow try to claim that the confession was coerced or not valid, but that's a long shot.