Blue and White - Hmmmm, do you mean like in Israel at the moment? Your solution doesn't seem to be working as there are still many Israelis and Palistineans dying on a weekly basis.
Do you mean like the years of a "zero tolerance" type policy attitude from the British Government towards the IRA? That didn't work to well either.
Terrorism is much less of a problem in the UK now than it used to be. Yes, we still have bomb scares, but nothing like it used to be. In fact, it's only since there has been communication between the various parties that some sort of peace has come about. The gun-totting "blowing the holy!!!!" out of 'em approach didn't work - doesn't work in the long-term.
Looks like the US has a lot to learn and insists on doing it the hard way rather than learn from others who have been through it. Fair enough, but please don't expect everyone else to do exactly the same things as the US government as many have made those mistakes before and are loath to make them again.