Feature: Marijuana "Tidal Wave" starting in Denver as thousands flock to buy weed

DENVER: In less than a week of sales, Colorado's cannabis stores are running out of marijuana, as Americans from coast to coast are flocking to the Rocky Mountain state to purchase the drug legally for the first time in the U.S. history.

"The gates are now open and this flood won't stop until it reaches all corners of the globe," said Allen St. Pierre, executive director of the National Organization for the Reform of Marijuana Law, aka NORML, the oldest marijuana advocacy group in the United States, dating back to 1970.