[Poohbah]

The Canadian border might also be that easy to get over --- but terrorists wouldn't face any scrutiny flying into Mexican airports then heading north -- if the bribe was right.

The Canadians don't screen at all; the terrorist simply asks for asylum and starts getting welfare checks immediately.

[FITZ]

Maybe --- still if you want fast access to any American city or town --- the Mexican border is the way to go --- after all, you only have to connect with the drug cartels who have vast networks of distribution set up -- contacts throughout the USA and very established smuggling routes. As fast as they can get a shipment of cocaine into the USA and distributed, they can get whatever other kind of shipment over here. No way can Canadians compete with that.