[CWOJackson]

"The terrorists have been using all four borders, not just the northern one."

True, but considering that their logistical support bases are in Canada, the fact that the Canadian border is far more open then the Mexican border, and our national emphasis is being focused to the south...they would have to be fools to not exploit the situation.

[Marine Inspector]

They have logistical support bases right here in the US, as well as Mexico and other Central and South American countries.

The reason for the southern focus is the 2 million plus folks that sneak in undetected, which is far less then the few thousand that sneak in undetected up north. The biggest hole gets the most attention.

Couple that with the fact that plain old illegal aliens kill more Americans then terrorists and put a much greater economic burden on our country then terrorism does, and you have a very good reason to focus on the southern border.

But, yes, I agree, we can not lose sight of the other 3 borders will trying to contain the southern border.