South Korea investigating reports Kim Jong Un is in 'grave danger' following surgery

U.S. intelligence agencies have received information that North Korean leader Kim Jong Un is in "grave danger" following surgery, a U.S. official with knowledge of the matter told CNN on Monday night. He was last spotted on April 11 at a government meeting, and was absent at a birthday celebration on April 15 for his late grandfather, state founder Kim Il Sung. Rumors swirled in 2014, when Kim Jong Un was briefly out of the public eye. Upon his return, he was seen using a cane, and South Korea i...