In the cannabis patch, a patchwork of safety standards – and in some cases none at all

By Nate Seltenrich, FairWarning

Although 35 states, three U.S. territories, and the District of Columbia have legalized cannabis for recreational or medical use, there still are no uniform standards for regulating potentially harmful contaminants in cannabis products. And with five more states voting this November on whether to allow cannabis for the first time, the problem will only grow.