回复11楼:https://www.cbsnews.com/news/the-bizarre-secret-behind-chinas-spy-balloon/
自己看英文。
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Now, seven months later, Gen. Mark Milley, chairman of the Joint Chiefs of Staff, tells "CBS News Sunday Morning" the balloon wasn't spying. "The intelligence community, their assessment – and it's a high-confidence assessment – [is] that there was no intelligence collection by that balloon," he said.