We already know that the object over the great lakes was a balloon with metal structural support, different in size and payload than the one we shot down over t

We already know that the object over the great lakes was a balloon with metal structural support, different in size and payload than the one we shot down over the Atlantic coast, but a similar object. There was a memo released about it reported on CNN. What concerns me is that the countermeasures (missiles) we are using to destroy these things likely cost an order of magnitude more than the balloons cost to create. Certainly less than spy satellites that can do the same job. If we are going to defend our airspace from these surveillance platforms, we have to find more cost-effective means of taking them down than $1M missiles.