live from london. nato says it may have been behind the air strikes that killed opposition forces in libya on thursday. but it says it won't apologize for the situation on the ground. take a look at this new video that emerged reportedly of an air strike that hit rebels on the move between al braga and ajdabiya. more grief for disaster-hit japan. four people died and more than 130 injured when a new earthquake hit northeastern japan. last night, 7.4 magnitude aftershock hit the same part of the country that was devastated by last month's monster quake and tsunami. regulators say they haven't found any new damage at the fukushima nuclear power plant. workers there have been battling to keep overheating reactors under control since the disaster on march 11th. there are some problems, though, at the oganawa nuclear