The shooting of Michael Brown, an 18-year-old African-American, by a police officer in Ferguson, Missouri, is a reminder that civilians-innocent or guilty-are far more likely to be shot by police in America than in any other rich country. In 2012, according to data compiled by the FBI, 410 Americans were justifiably" killed by police-409 with guns. That figure may well be an underestimate. Not only is it limited to the number of people who were shot while committing a crime, but also, amazingly, reporting the data is voluntary. Last year, in total, British police officers actually fired their weapons three times. The number of people fatally shot was zero. In 2012 the figure was just one. Even after adjusting for the smaller size of Britain's population, British citizens are around 100 times less likely to be shot by a police officer than Americans. Between 2010 and 2014 the police force of one small American city, Albuquerque in New Mexico, shot and killed 23 civilians; seven times more than the number of Brits killed by all of England and Wales's 43 forces during the same period. The explanation for this gap is simple. In Britain, guns are rare. Only specialist firearms officers carry them; and criminals rarely have access to them. In America, by contrast, it is hardly surprising that cops resort to their weapons more frequently. In 2013, 30 cops were shot and killed-just a fraction of the 9,000 or so murders using guns that happen each year. Add to that a hyper-militarised police culture and a deep history of racial strife and you have the reason why so many civilians are shot by police officers.