President Barack Obama, first Lady Michelle Obama, former President George W. Bush and former first lady Laura Bush pause for a moment of reflection with family members of victims at the North Pool of the 9/11 Memorial. (Jefferson Siegel, Getty Images)

President <a class="taxInlineTagLink" id="PEPLT007408" title="Barack Obama" href="/topic/politics/government/barack-obama-PEPLT007408.topic">Barack Obama</a>, first Lady <a class="taxInlineTagLink" id="PECLB005380" title="Michelle Obama" href="/topic/politics/michelle-obama-PECLB005380.topic">Michelle Obama</a>, former <a class="taxInlineTagLink" id="PEPLT000857" title="George W. Bush" href="/topic/politics/government/presidents-of-the-united-states/george-w.-bush-PEPLT000857.topic">President George W. Bush</a> and former first lady <a class="taxInlineTagLink" id="PECLB005359" title="Laura Bush" href="/topic/politics/laura-bush-PECLB005359.topic">Laura Bush</a> pause for a moment of reflection with family members of victims at the North Pool of the <a class="taxInlineTagLink" id="EVHST000001" title="September 11, 2001 Attacks" href="/topic/unrest-conflicts-war/terrorism/september-11-2001-attacks-EVHST000001.topic">9/11</a> Memorial. (Jefferson Siegel, Getty Images)

( September 11, 2011 )

President Barack Obama, first Lady Michelle Obama, former President George W. Bush and former first lady Laura Bush pause for a moment of reflection with family members of victims at the North Pool of the 9/11 Memorial. (Jefferson Siegel, Getty Images)

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