Japanese national television NHK said that the 50 remaining workers at Fukushima's Daiichi nuclear reactor have been withdrawn because of high levels of radiation. The language used was sufficiently vague enough to indicate that they may return. AP report: 70 percent of fuel rods at one of the six reactors at the plant were significantly damaged in the aftermath of Friday's calamitous earthquake and tsunami. CNN's commentator, scientist Jim Walsh of MIT, said that if this is a total withdrawal this is very serious indeed.