In 2013, the Obama administration issued the Cole Memorandum, which called a truce between federal prosecutors and marijuana businesses operating legitimately under state law.  After regime change in Washington, however, it may come as no surprise that Jeff Sessions—the Attorney General who once opined that “good people don’t smoke marijuana”—rescinded the Obama-era guidance.  The only real surprise is that it took him a whole year to do it. Since at least 2013, marijuana-related…