Concerns about Japan’s earthquake-induced nuclear-power shutdowns spread to another reactor at the Tokai No. 2 Power station, but authorities said a pump is keeping the reactor cool, according to reports early Monday. One of the two pumps used to cool the water of a suppression pool for the nuclear reactor at the Tokai plant stopped, but a second system is working, according to the English-language version of Kyodo News, which cited the nuclear safety section of the prefectural government. Japan Atomic Power said the reactor core at Tokai No. 2 Power station has been cooled, “without any problem,” Kyodo News...