This was reported Jan 29, 2013
[link to www.foreignpolicyi.org]

"China is covertly working with North Koreans to modernize Egypt’s short-range missile systems, raising new concerns among United States intelligence officials about the arms programs of the Muslim Brotherhood-affiliated government in Egypt. – Washington Free Beacon"

Within the same report:
"For American watchers of the North Korean regime, there was something particularly noteworthy about this weekend’s news that Kim Jong Eun met with other officials “to take substantial and high-profile important state measures” – code words for detonating a nuclear explosive. – WSJ’s Korea Real Time"