That say could fly low altitude at night and have more precision firing. something that you wouldn't necessarily use to patrol a no-fly zone, but they could be very much used if you're going after ground targets. and again, as these gadhafi forces move closer and closer to the city, where you've got more of a danger of civilian casualties, obviously the coalition is going to have to be, you know, just as judicious in knowing when to apply some of this force. >> chris lawrence at the pentagon. thanks so much, chris. new worries in japan today about radiation levels in the sea water off the co...