3.5 million Muslims live in the USA. If only 1% of them are extremist then you have over 30,000 potential terrorists. US gun laws are open slather.
Trump has opened a massive can of worms that will take a hundred years to resolve. All because he couldnt accept a deal worked out 10 years ago that kept the lid on Iran until he came along.
He can win the battles but the 90 million Iranians plus the few billion Muslims around the world will never forget. The Viet Cong and Taliban showed what happens.