There are over 550 million firearms in worldwide circulution. 全世界一共有五亿五千万支军火。 That's one firearm for every 12 people on the planet. 也就是说，每12个人就有1支枪。 The only question is,how do we arm the other 11? 唯一的问题是，我们如何让其他的11个也有枪