UPDATE 4 (4/13/2011): The Street adds some more information: A delegation of 12 North Korean economic envoys flew back to Pyongyang on Sunday after spending two weeks touring companies that “represent main strands of the U.S. economy.” The group visited Google (GOOG), Home Depot (HD), Bloomberg, Citigroup (C), Qualcomm(QCOM), Sempra Energy(SRE), Union Bank, and Universal … Continue reading DPRK economic delegation visits US