The terrorists come from the moslim community already inside the country.  Each time you take out one, some one will just pop up to replace him/her.   There is no way you can control them since they breed faster than the local population and at the same time the government is letting more of them to come in as if the moslim population is not big enough.  No one dare to say any thing on this issue for fear of losing his job because of the so-called human rights nonsense.