A couple of random thoughts. Sexual predators should have a gps chip implanted in their necks. Then we will always know where they are. Ideally, they would get a life sentence for the first conviction of molesting a child. A life for a life. If you have never been molested, you may think that is a little harsh. If you have been molested, you know it isn't.
Why do we behave so stupidly regarding terrorism? As far as I am concerned, terrorists have no rights. If we manage to catch one, we should do whatever it takes to get as much information as possible before killing them. Our policy of treating everyone who is in America the way we treat a citizen is stupid and dangerous. If our intelligence community thinks someone is a member of a terrorist organization and they are not a citizen, they should be able to pick them up and question them without worrying about their rights. American citizens have rights. Terrorist tourists should not.