An Afghan policeman stands guard in central Kabul, Saturday, April 6, 2013. NATO says a blast in Afghanistan has killed four coalition service members and two civilians working with the alliance. The ... more 
An Afghan policeman stands guard in central Kabul, Saturday, April 6, 2013. NATO says a blast in Afghanistan has killed four coalition service members and two civilians working with the alliance. The blast from a roadside bomb occurred Saturday in southern Afghanistan.(AP Photo/Jawad Jalali) less 
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Associated Press | Photo By Jawad Jalali
Sat, Apr 6, 2013 3:12 PM EDT