Why are countries using balloons in the first place? Surely satellites are a bit more reliable, better quality and more 'secret' than a balloon wafting along...
Sometimes countries (i.e. security services of those countries) just want to keep testing each other? Or they just want to piss them off? Some of the security services still see it all as a big game? (edited, as these were all just suggestions really - the last one, not so much)
Why are countries using balloons in the first place? Surely satellites are a bit more reliable, better quality and more 'secret' than a balloon wafting along...