In the 1990s, smuggling again reached a zenith with exports of high grade marijuana from neighboring British Columbia, and corresponding flow of cocaine and handguns from the United States into Canada. As the production of 'BC Bud' grew across BC, a sometimes dangerous game of cat and mouse played out along Blaine's border with Canada. Smugglers used every technique, from backpacks to helicopter aerial drops to bring tons of the marijuana crop into the US, while a growing phalanx of local, state, provincial and federal law enforcement from both sides of the border sought ways to stem the tide. Following the terrorist attacks of 2001, the addition of hundreds of federal agents and millions of dollars in enforcement technology have pushed much of the smuggling activity into the rugged interior of Washington.