>> reporter: you mentioned there was a reasonable threat. was there also a threat to potentially this object detecting some of our more sensitive radar capabilities that are based in alaska? and then what hasn't been said is where this object has come from. is there any indication that this was also a chinese surveillance balloon, object, whatever it is? >> at this point, we don't know the origin of the object. again, we will know more once we're able to potentially recover some of those materials. but the primary concern, again, was the potential hazard to civil flight. again, we'll know more later. >> the perceived threat to any of the radar installations that we have based in alaska? >> again, right now, we'll know more once we assess it. we'll just leave it at that. thank you. liz.