A nuclear reactor in northeastern Japan will be halted just days after becoming the first one to restart in the region since the 2011 earthquake and tsunami disaster, the plant operator said Sunday, citing the need for checkups.Tohoku Electric Power Co. said it has not confirmed any abnormalities in the No. 2 reactor at the Onagawa plant in Miyagi Prefecture. The latest decision stemmed from a problem in sending in a device necessary to confirm the reactor's condition.The No. 2 unit on Tuesday joined a dozen reactors in the country that have been rebooted after meeting more stringent safety…READ FULL ARTICLE