The BBC reports that Chileans may soon be able to legally grow up to six marijuana plants thanks to a bill that was passed by a lower house of congress. Previously, those who possessed or cultivated the plant risked 15 years imprisonment. Last October, the country began its first medical marijuana trial program. The new bill will go before a health commission and then the Senate for approval. Members of the lower house approved the bill by a wide margin, with 68 in favour and 39 against. ... Several…