On Monday, North Korea declared the 1953 Korean War armistice nullified. On Tuesday, Director of National Intelligence James Clapper emphasized the danger posed by North Korea’s nuclear weapons and missile programs, calling them, for the first time, "a serious threat to the United States."
"The rhetoric, while it is propaganda-laced, is also an indicator of their attitude and perhaps their intent," Clapper said.
Is it time to start to take North Korea more seriously? Karin Lee, executive director of the National Committee on North Korea, weighs in.