Many atheists, myself included, have been overly optimistic that a rational argument will be sufficient to change minds. I now think the best we can do is make good points in a reasonable and pleasant manner.
No longer able to convince Americans that marijuana consumers are dangerous criminals who deserve to be locked up, history is repeating itself. We are seeing a shift in the message, from marijuana consumers as criminals to marijuana consumers as sick people who belong in treatment.
A person addicted to heroin needs the drug as much as a diabetic needs insulin. How he or she gets it is problematic, but until we legalize and tax heroin, we need outreach programs to alleviate suffering and save lives.