Colorado becomes the second state to allow psychedelic therapy this week after two years of rulemaking.

Copyright 2019 CNN(CNN) - The recent rash of vaping-related illnesses and deaths could represent a crisis for the legal cannabis industry, which relies on vaping for an estimated quarter of its business in some states. But, some people in the industry believe, the problem could also represent an opportunity, to both help people and push toward wider legalization in the United States. On Wednesday, the National Cannabis Industry Association (NCIA) put out a call to Congress: To deal with vaping-related illnesses, legalize cannabis and regulate us. Even if the issue is rooted in the black market, the situation could become a serious threat for the legal cannabis industry as more authorities warn against vaping or move to crack down on it. Through July, vape products accounted for 25% of licensed cannabis sales in Arizona, California, Colorado, Nevada and Oregon, according to cannabis research firm BDS Analytics.