For Md. Plant, Japan Reminder Of Potential PerilsGeorge Gellrich gets up at least once a night to check his computer. He could wait until the morning briefing at work, or even for the morning news shows. But he just can't. He needs to know: Was there another explosion at the crippled nuclear plant in Japan? Did they restore power to the pumps? Is there enough water in the spent fuel pool at Unit 4? Has the radioactive contamination grown worse?