Mistakes happen, every day

"The Afghan capital is on high alert after rioting sparked by the death of four civilians when a US embassy vehicle crashed into their car. There are fears of a repeat of the city-wide riots that struck Kabul in 2006.Police fired shots into the air in a bid to disperse an angry mob that torched two embassy vehicles and threw stones at police and Nato soldiers who rushed to the scene near the centre of Kabul's diplomatic quarter."