Code-name for a 2003 U.S. Drug Enforcement Administration investigation targeting businesses selling cannabis pipes and bongs. Hundreds of businesses and homes were raided during the operation. Fifty-five people were charged with trafficking of illegal drug paraphernalia, including actor Tommy Chong, who was sentenced to 9 months in federal prison for financing and promoting a glass shop. Operation Pipe Dreams was estimated to have cost more than $12 million.

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