AP Exclusive: Montana goes its own way on marijuana

HELENA — If American society's tolerance for marijuana is now growing, then what happened in Montana illustrates just what can happen when the government decides things have gone too far.

Pot advocates were running caravans, helping hundreds of residents in a day get medical marijuana user cards. Some doctors who conducted cursory exams on scores of people were fined. As the number of users quickly grew, so did a retail industry that led some to dub the state "Big High Country."

AP Photo/Matt Volz

Drug Enforcement Agent In Charge Brady MacKay, left, and U.S. Attorney Mike Cotter discuss the en...