As long as it remains that their are absolutely ZERO deaths related directly to the intake of marijuana, i see no problem with it being legalized. Especially when legal pharmaceuticals kill upwards of 20,000 people a year(22,134 deaths in 2015 relating directly to pharmaceutical overdose). and yes, I would hope people would be responsible enough to not drive while under the influence of being marijuana if they feel as if they are too high to drive properly. Driving under the influence of marijuana has never been harder for me than driving sober. I do not agree about it "doubling" the risk of a car accident, and if that is so, then alcohol must increase the risk of a car accident by 20x, and yet the american government sees no problem with that being legal and regulated, even when it is responsible for the deaths of 80,000+ deaths a year not including car accidents. I personally see no problem with the legalization of marijuana. A study found that in 2010, when busts reached about 750,000, the cost of arrests amounted to more than $3.6 billion. There is absolutely no reason to spent this amount of money on some stoners who want to get high and order a shit ton of dominoes when that extra $3.6 billion could be used on actual problems like criminals, rapists, and murderers instead of a fucking plant.