In this Nov. 20, 2012, photo, people browse local weekly news journals reporting U.S. President Barack Obama's trip to Myanmar at a newsstand, in Yangon, Myanmar. Little noticed during

 

              In this Nov. 20, 2012, photo, people browse local weekly news journals reporting U.S. President Barack Obama
In this Nov. 20, 2012, photo, people browse local weekly news journals reporting U.S. President Barack Obama's trip to Myanmar at a newsstand, in Yangon, Myanmar. Little noticed during Obama's landmark visit to Myanmar was a significant concession that could shed light on whether that nation's powerful military pursued a clandestine nuclear weapons program, possibly with North Korea's help. Myanmar announced it would sign an international agreement that would require it to declare all nuclear facilities and materials. Although it would be up to Myanmar to decide what to declare, it could provide some answers concerning its acquisition of dual-use machinery and military cooperation with North Korea. (AP Photo/Khin Maung Win)