Ms. Barbara Ehrenreich, who lives in the Florida Keys, is a columnist and author of several books, and a frequent lecturer on feminist topics. She writes a regular column for Time magazine. In a book she co-wrote she said that Cannabis is the #1 medicine and meditation tool for most of the cultures on the planet, including our own. At various times in history, a few power tripping priests, kings, doctors and politicians have thought up some lame excuses why they should have the only say over who (if anyone) gets to grow, deal and use the herb.amp;nbsp;