Traveling to the US was a lot easier in the 90's
You just had to fill 2 (?) papers. You know the one with those stupid questions: Do you have a communicable disease; physical or mental disorder; or are you a drug abuser or adict? Sure, what the heck do you care?
Do they really think to get rid of "terrorists" by following that road? I guess there are killed many more people in the US by US citizens than by foreigners every year. I am sure that young people never visited US before may stay away from a trip after being informed about the actions to be taken prior entering the country and spend their money in other countries. Probably tourists will spend less money over the coming years.