Weak? Was this suppose to be a joke? Did I misread your post?
We are at war, no?
We have millions entering this country during war. We have trucks entering daily with thousands of pounds of dope, and many others are crammed with human cargo.
Mexico is one of the most corrupt countries on earth. Officials can be bribed with mere tokens.
Since 911 airport security has been beefed up. It would be a little difficult to smuggle in weapons, bio material, bio weapons, and material for other weapons, dirty bombs etc in a commercial airliner. No?
How easy would it be for ship to sail to Mexico, filled with all kinds of nasty stuff, bad guys, weapons, bio stuff, or other weapons material, or whatever? Bribe a local official if need be. Put these guys and their nasty cargo on trucks and roll it across the border along with all the other trucks entering with loads of dope and human cargo. This could *easily be accomplished.
Yeah. So? We are not at war with Mexico.