Thanks for the question.
Again, my view is that it is one of multiple sensors that could be used. It is one they may have felt was not going be detected and one that may be a bit more difficult to attribute, as well, in terms of launch locations, capabilities and intent. That may be one of the reasons. We know that the PRC has a number of systems in orbit that have a great capability, but those systems may not have the loiter time that a high-altitude balloon—a surveillance balloon, in this case—may bring about.
General Prévost, is there anything you would like to add?