@cicerone imposter,
cicerone imposter wrote:
Security at airports, piers, and borders were strengthened after 9/11. What world do you live in? Do you ever travel by these modes of transportation? Probably not, because they now have security lines with TSA agents who even look at little old me with my passport over a half inch thick with stamps from all around the world. At many airports, I have to take off my shoes, belts, and wristwatch - with nothing in my pockets. They even xray every passenger and carryon luggage that goes through security.
You are totally ignorant of the realities of today's border security at all countries. No passport, no VISA, no passenger.
Give it a try; try to get on a plane without a passport to the Middle East.
Your argument rests on the ludicrous idea that ISIS cannot in any way find a person who can pass a background check, nor contact a sympathizer already in the US.
ISIS may be friendly with other groups with similar aims who can get a person in or knows a person already inside. They may save new recruits who aren't yet on the law enforcement radar for this type of use. You are asserting that no matter how many sympathetic groups they know, no matter how much money they're willing to spend, no matter how many international sympathizers they know, they cannot contrive to find a single person who can get in or already is in the US. Frankly, it's unbelievable. International authorities cannot identify every person in the world who has sympathies with radical Islam. Are you aware that law enforcement actually does, from time to time, foil bombing attempts in the US by radical Muslims?