CNN's John King and Arnie Gundersen discuss "hot particles" detected in Seattle and Japan, the cozy relationship between Japanese regulator NISA (Nuclear and Industrial Safety Agency) and plant owner TEPCO, and changes at the Fukushima accident site since March. John King and Arnie Gundersen also discuss how TEPCO's acknowledgement today of another error in calculating radiation dose more than doubles the amount of radioactivity to which people in the Northern Hemisphere have been exposed.