An Israeli riot policeman keeps watch as

An Israeli riot policeman keeps watch as Palestinian Muslim worshippers perform Friday prayers outside Jerusalem's Old City on March 19, 2010 after they were banned from entering the Al-Aqsa Mosque compound due to Israeli police age restriction for men under 50-years-old in fear of riots at the holy site. The Quartet for the Middle East urged Israel to stop building settlements and set a bold target for a final deal with the Palestinians by 2012 as it tried to kickstart the stalled peace process. An Israeli announcement last week of the construction of 1,600 new settler homes in annexed east Jerusalem led the Palestinians to call for a halt to peace talks and precipitated the worst crisis in US-Israeli relations in years. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP via Getty Images)