U.S. President Barack Obama, right, walks alongside of with Sgt. Theresa Hannigan, left, from Long Island, New York and Radi Kaiuf, center, during a tour of the Technology Expo in Jerus

 

              U.S. President Barack Obama, right, walks alongside of with Sgt. Theresa Hannigan, left, from Long Island, New York and Radi Kaiuf, center, during a tour of the Technology Expo in Jerus
U.S. President Barack Obama, right, walks alongside of with Sgt. Theresa Hannigan, left, from Long Island, New York and Radi Kaiuf, center, during a tour of the Technology Expo in Jerusalem, Israel, Thursday, March 21, 2013. Hannigan and Kaiuf where demonstrating technology that assist paraplegics to walk again.(AP Photo/Pablo Martinez Monsivais)