prohibits torture. i had written quite a few posts on this matter in 2005-6. the 500,000 are on watch lists, not in custody of anyone. denying visas to those on watch lists is a rational approach. if anyone on the list is put there by mistake, they should be able to prove so.
Twin bombs kill around 10 and wound 100 in Cameroon town (Reuters)
from the article: Israeli firm blasted for letting would-be plane bomber slip through