Drug Seizures Have Surged at the Borders
Heightened security after the Sept. 11 attacks has had a major side effect: seizures of illegal drugs along the nation's borders and at its ports of entry increased substantially in October and November over the corresponding period a year ago, law enforcement authorities say.

The greatest increase, 326 percent, was in seizures from commercial traffic along the Canadian border. But the overall figure was also large: the amount of drugs seized from commercial traffic — that is, from trucks, ships and planes — at all borders and ports was up 66 percent, the Customs Service says.

Experts have no clear evidence that the increased seizures have created a shortage of drugs on the street or raised their price there.
http://www.nytimes.com/2001/12/16/national/16DRUG.html