Marijuana and other products containing THC, the plant’s main psychoactive ingredient, have grown more potent and more dangerous as legalization has made them more widely available. Although decades ago the THC content of weed was commonly less than 1.5%, some products on the market today are more than 90% THC. The buzz of yesteryear has given way to something more … [Read more...] about Legal pot is more potent than ever. And it’s still largely unregulated, putting consumers at risk.