New York Times: The Nuclear Regulatory Commission voted 3 to 2 on Tuesday to require improvements to the emergency vents at 31 American reactors that share design similarities with the Japanese reactors that melted down two years ago. The agency stopped short, however, of requiring filters to scrub out radioactive particles coming through those vents. The nuclear industry had readily agreed to many improvements recommended by the staff of the five-member commission after the Fukushima Daiichi nuclear disaster,...