Cities shouldn’t prohibit vaping sales to adults

The national discussion about the health risks of vaping involves both the long-term effects of e-cigarettes and an immediate crisis. At last count, more than 500 lung disease cases in 36 states, along with eight deaths, have been linked to vaping. It appears from news reports that many of those cases involve vaping not a nicotine product but THC, the active ingredient in marijuana. Government agencies and medical researchers are still investigating.