US-DRUGS-OREGON

Houston police have made what they're calling the city's largest kush seizure after seizing nearly 600 pounds of the synthetic drug, worth about $2.5 million. 

Houston Police Chief Art Acevedo said "The substance was laced with paint thinner. So when we're telling young people and the people that would use this stuff that they're actually ingesting poison, we're not making it up."

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