was first spotted by members of the public by us. and he was very critical that he wasn't even kept in the loop as to what was going on. i think you saw senator lisa mur camurkowski of alaska. they did seem to learn its lesson from last week. >> and juliette, what do you make of this latest object? what do you think it was? who maybe behind it? and the fact that it's much smaller, the size of a car compared to three buss, which was the size of of the chinese supply balloon. what do you think this is? >> we don't know yet. given its altitude, it to be taken down because it was a threat to commercial aviation. that was a key factor in the risk calculation that the military made about the balloon in terms of was it a threat.