Crime: This Bud's For The U.S.

It was the bus driver who noticed something suspicious. According to school officials, a driver for Blaine High School in northwestern Washington State thought something was strange about students' carrying unusually full bags to school and then never taking them back home. He alerted U.S. authorities, who boarded the bus on the morning of Feb. 20 and allegedly found 8 lbs. of marijuana, valued at $25,000, hidden inside a teenage girl's backpack. Prosecutors allege that the minor, 16, was getting paid $300 a trip to work as a drug mule for smugglers moving marijuana into the U.S. from Canada. The teen's home, in Point Roberts, Wash., borders British Columbia in an area with relatively light border patrol, which would have made it easy for her to get the drugs from Canada before getting on the bus.

Expelled from school and charged with possessing marijuana with intent to deliver, the girl has a hearing scheduled for Aug. 23 in Bellingham, Wash. Deputy prosecutor Thomas Verge has said he will probably ask for an exceptionally long sentence that would put the teen behind bars until her 21st birthday. The controversy has upset the community. "She was a wonderful young girl," says her principal, Dan Newell. "I wouldn't have ever thought that if anyone was going to haul marijuana across the border, it would be this lady."

Nor would anyone have thought that the cross-border traffic of illegal drugs would become one of the knottiest areas of disagreement between the U.S. and its northern neighbor. An estimated 880 to 2,200 tons of marijuana are grown in Canada, according to a new report from Canadian police. About 90% of the commercial crop winds up in the U.S., where its street value ranges from $5 billion to $25 billion. Although only 5% of pot in the U.S. comes from Canada, the trade is flourishing because of high demand in the U.S. and the comparatively mild punishments in Canada for growers and traffickers.

The U.S. seized more than 48,000 lbs. of marijuana along the Canadian border last year, nearly double the 26,000 lbs. it retrieved in 2002, according to a U.S. State Department report. There have been seizures all along the border, in Montana, North Dakota, Michigan, Ohio and other states. Canadian pot has cachet in the U.S. because of its reputation for being especially potent. The featured brand is BC Bud--which is grown in British Columbia and has become synonymous with the high-grade marijuana grown throughout Canada. Once in the U.S., the pot is exchanged for cash, and sometimes cocaine or guns, which are then smuggled back to Canada.

Although the actual potency of BC Bud varies from batch to batch, depending on how it's grown, the U.S. Drug Enforcement Administration says that as much as 25% of BC Bud is made of the psychoactive drug tetrahydrocannabinol (THC). In contrast, the pot that the hippie generation smoked in the 1970s had only 2% THC content, and most pot consumed in the U.S. today averages about 7% THC.