most complicated humanitarian missions in history, frankly. they are already dealing with the devastation, which is complicated enough. but now the nuclear reactor situation. navy officials are saying some of their helicopter crews have been exposed to low-level radiation. they think everybody is okay, at least so far. but they ve given some of these air crews potassium iodine to make sure they re safe and not harmed. some of the u.s. navy ships in the area are being moved to different locations because of the atmospheric conditions. and then look at the financial side, which you know better than anyone. treasury secretary tim geithner was on the hill earlier today and was asked by some senators with the fact of the asian markets plummeting now, and so many asian companies suffering what kind of impact will that have on u.s. securities? specifically american pensions that may be tied in to some of the asian securities? he assured the senate that he