President Barack Obama on Friday honored the four Americans killed in an attack on the U.S. consulate in Libya, recalling their lives in deeply personal terms and declaring the United States will never pull back on its principles or 'retreat from the world.' The coffins of the four men were brought back to the United States on a military transport plane this afternoon and carried by serving officers to waiting hearses parked under a giant hanging Stars and Stripes. 'Their sacrifice will never be forgotten. We will bring to justice those who took them from us,' said President Barack Obama...