Been thinking more on this. How about getting some of our high altitude jets up there and have their exhaust alter to course of the balloon? The balloon is already far north in the U.S. Maybe divert it further north into Canada? Hmm. No. Our friends to the north may not appreciate that. O.K., then, south? Perhaps over a trailer park in Alabama? That'd give the Chinese intel analysts cause for pause.
Even mount a jet engine in the cargo bay of a C-130 Hercules? Make a balloon -blaster out of it. Heck, it's been used for everything else. This would add to its already impressive resume.
Get jets from various air national guard squadrons in the air and contest pushing the balloon - pong style - over various states in the desert SW. Points awarded based on electoral college votes the state has. Las Vegas could cash in with a lottery for all U.S. citizens. Like where it finally gives up the ghost and is forced down or just expires on its own. Million dollar pay-out. Hey, when there's a buck involved, D.C. gets interested too.
Making light of a serious situation, I know. But at times levity breeds results.