Recreational cannabis with mind-altering levels of THC is now legal in 10 states. Many more states allow sales of CBD, a chemical from cannabis that won’t get you high, but is claimed to have myriad health benefits. Yet big questions remain: How safe is cannabis? How should it be regulated? And who gets to profit from its sale? In this episode, plant chemist John de la Parra and attorney Ernest Anemone delve into those questions.