Serbian gendarmerie officers guard Serbian Presidency building during a protest, in Belgrade, Serbia, Monday, June 13, 2011. Serb nationalists are protesting against the upcoming NATO converence due ... more 
Serbian gendarmerie officers guard Serbian Presidency building during a protest, in Belgrade, Serbia, Monday, June 13, 2011. Serb nationalists are protesting against the upcoming NATO converence due to start Tuesday, June 14, 2011 in the Serbian capital.(AP Photo/Darko Vojinovic) less 
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Associated Press | Photo By Darko Vojinovic
Mon, Jun 13, 2011 8:49 AM EDT