If they are bringing in bio-agents, I say they are WMDs, and need to be dealt with appropriately.
Are you any less dead if you die from antibiotic resistant tuberculosis or from an anthrax attack? These folks are walking bio-bombs! And look at all the murders, rapes and child molestations they are committing! And don't forget John Lee Malvo, the Washington sniper! He was in Federal immigration custody and turned lose on our population as part of their catch and release policy.