I am a cop, is there a problem with it?

And you can be arrested for probable cause. Its called being detained. Once the investagation is complete, they are released. The ones being arrested are those who did not register or have failed to renew the visa's they currently hold.

They are guests here and they should respect our laws. We didnt arrest all of them and we released some already. We are not going to wait around for someone to attack us again. Its called "pre-emptive" How many of you on Sept. 11 were saying "how could they do this?" or "how come our goverment let this happen?" Well you want results....