. >> what happens if charles lynch is wrong? >> i'll lose everything if they take me to jail that day. >> why some say marijuana laws aren't working. >> the prohibition of marijuana is much more harmful to the user and society than the actual use of marijuana. >> marijuana -- 100 million americans have tried it and, yet, it remains one of the most controversial drugs. effectively outlawed in 1937, it's become a multibillion dollar industry, with a steady demand and no shortage of supply. in fact, sometimes you needn't look any further than the house next door to find it growing. 7:30 in the morning, miami, florida. agents of the drug enforcement agency, dea, and police gather in a parking lot to get briefed on the day's mission. >> going to go to 128 -- >> the plan? to hit a list of homes they suspect are marijuana grow houses. >> the registered owner doesn't live at this address but that's where they delivered it to. >> they have no idea what or whom they'll find. >> anybody got any questions? get your guns. >> every scenario w