Obama, Cuba's Raul Castro greet each other with handshake

Tuesday, December 10, 2013 | 4:28 p.m. CST; updated 6:28 p.m. CST, Tuesday, December 10, 2013

HAVANA — It was the briefest of moments, just seconds, two presidents shaking hands and exchanging pleasantries amid a gaggle of world leaders together to honor the late Nelson Mandela.