Shutting the door to the street in front of you full of criminals and druggies so your safe inside does what sir ?
BTW , I fucked up alittle on the post , I meant if your closed the border completely. But still , what the heck do Canadians and Mexicans have to do with bombings and terrorists? If anything you'ed want to control the airplanes and flight immigrantion.
Yes someone can come from Canada and Mexico to attack the US , but the rewards for an open border far outway the chance you MIGHT stop an attack.
