In many cases, the government’s attempts at regulating health care markets are complex, convoluted operations—and seeing the consequences of those policies can be tricky. Other times, however, it is very straightforward: the government just says “no.” When that happens, it doesn’t matter what patients need or what doctors want. In its rush to prevent some people from recreationally using certain drugs or accessing certain treatments, the federal government creates huge roadblocks for patients with legitimate needs and doctors who are only trying to help. That’s what happened earlier this year …