By BY AMANDA HOLPUCH from NYT A Chinese balloon seen floating over the northwestern United States this week was a reminder of how governments have used balloons for reconnaissance for more than a century.U.S. https://ift.tt/D4pi63P
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A Brief History of Spying With Balloons
By BY AMANDA HOLPUCH from NYT A Chinese balloon seen floating over the northwestern United States this week was a reminder of how governments have used balloons for reconnaissance for more than a century.U.S. https://ift.tt/D4pi63P
via
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