That's why the TSA needs to spend billions of dollars feeling up little kids who are flying to Disneyland for all of us to be completely safe. Everyone knows that terrorists would NEVER just walk across the border. They always use airplanes. So we must be vigilant. But we must not profile in our vigilance because that would be racist.
Also, we have no freaking clue who we are looking for anyway, so we might as well let the TSA agents get some thrills every day. What can it hurt?