US President Barack Obama (R) speaks with family members of victims of the September 11, 2001 World Trade Center attack after laying a wreath at the 9/11 Memorial at Ground Zero in Lower Manhattan May 5, 2011 in New York. Obama took a defiant message to the New York epicenter of the 9/11 attacks Thursday, warning that Osama bin Laden’s death proved America will never fail to bring terrorists to “justice.” AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP/Getty Images)