I think the most effective law that could be passed by congress is any family of a victim of illegal aliens can sue the city if they failed to cooperate with the federal government
Yes, my FRiend, but let's not stop at the city level. One is not an attorney, however one suspects that any politician that aids and abets illegal aliens (who in turn, commit more crimes) should be equally culpable for those crimes.
Consider, for example, the governors of states that shield illegals at the state level. Could they not be considered complicit in a court of law for any further crimes committed by said illegal aliens?
Rush Limbaugh said last Tuesday that the original Amnesty bill included just such a provision.