If it's truly a mistake and I were tasked on handling this issue, I'll probably publicly notify the US about the the incoming balloon and tell them "feel free t

If it's truly a mistake and I were tasked on handling this issue, I'll probably publicly notify the US about the the incoming balloon and tell them "feel free to shot it down before it reaches the US to prevent the balloon from causing any trouble". The silence before the event went public tells me another story through.