Tensified the effects of recessions in the three nations by the end of 2001.this security "perimeter" consists of safeguarding the people of north america. This,in turn,requires than washington,ottawa, and mexico city coordinate their security, intelligence, economic and immigration policies. Theresult is a misguided continental immigration policy, one in which people needed for econmic growth encounter obstacles, while enemies of north america are free to enter and leave at will. While known terrorists have entered the united states by car from canada and known ak-qaeda menbers have been monitored on holiday near acapulco, legitimate labor and business activities.