One way that Obama might reduce the amount of violence in the world is leave the matter of drug enforcement up to the states. He has already promised that people who comply with state law won't be prosecuted for drug possession by the federal government. I applaud him for this, but I wish he would apply this principle on all matters pertaining to drugs. If every state were allowed to set their own drug policies, it could go a long way towards reducing the amount of violence stemming from the drug trade.
Even if you think that someone using marijuana across town impacts your quality of life, you should support this idea. Indiana is not going to allow pot use in the foreseeable future. But if another state decriminalizes it, many undesirable potheads will leave this state.
Indeed, a substantial portion of the violence in Afghanistan is due to the opium trade. I propose that Obama allow the allegedly sovereign nation to establish and enforce its own drug policies. Our troops are there to fight terrorists. Their poppy is their problem.