You live in a very simplistic world, don't you? History tells us that government uses those sorts of powers against people they don't like, not just against people who deserve it. Remember, the people applying those laws are human too, and subject to all the foibles humans have expressed throughout history.
You need only look at the asset forfeiture laws that have been used in the war on drugs. Volusia county in Florida had a lovely sheriff who used them to take cash away from black college students without any due process. Be very careful who you give those sort of powers to, you might not like the results.
From your comment about the law, I suspect you are not an American Muslim and that you don't look middle eastern. Perhaps you would have a different opinion if you did.
However, back to my argument. You call them monsters, and I certainly won't bother to disagree. As before, all I ask is how you expect that to help solve the problem. The very fact that you label them as monsters, deserved or not, takes away from them all need to act as anything but monsters. As we are doing in Iraq, you create the enemy you intend to eradicate. Again I ask, how do you intend to win this battle?