An anti-government protestor, center, reacts during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen, Tuesday, March 15, 2011. Witnesses in a Yemeni ... more 
An anti-government protestor, center, reacts during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen, Tuesday, March 15, 2011. Witnesses in a Yemeni border town say armed anti-government tribesmen stormed a security building, killing four soldiers in a revenge attack after government troops opened fire on opposition protesters. The attack in the town of al-Jawf, close to the border with Saudi Arabia, came late on Monday, after government troops shot at and wounded 20 protesters rallying at the town's administrative complex. less 
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Associated Press | Photo By Muhammed Muheisen
Fri, Mar 18, 2011 8:50 PM EDT