A Chinese balloon seen hovering over Montana this week has been described as an intelligence-gathering airship by the Pentagon and a stray civilian research airship by China.Whatever its intended use, the balloon offers a reminder of how for more than a century, governments have used balloons for surveillance and observation, most often during times of war.
#people #back #united-states #governments #afghanistan #effectiveness #surveillance #world-war-ii #pacific-ocean #national-park-service
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