How Do We Not Have the Capacity to Shoot Down a Balloon?

There's always two interpretations to an event like this, one is a devious plans or perhaps very smart plans and the other is gross incompetence. The devious plan option is you know there is an advantage to countries allowing each other to have some to be looking at each other's thought. And how do we not have the capacity to shoot down a balloon to collect a balloon intact in midair? That can go within 20,000 feet of it and shoot an incredibly expensive missile that then blows up and then destroys the balloon. I mean in World War II if there was stuff you could drag out of a C-47 to grab people of our mountain teddy the capacityHow do we not