Even as laws change, the ‘M’ word is banned in head shops
[caption id="attachment_7352" align="alignleft" width="300"] Water pipes by 13 Glass sit on display at The Wonders of Cannabis Festival in San Francisco, California in this October 27, 2007 file photo.[/caption] PHILADELPHIA (Reuters) - You still can't say "marijuana" in the head shop. For years, the stores that sell...