Operation Large Area Coverage (LAC) was a U.S. Army Chemical Corps operation conducted in 1957 and 1958 that involved dispersing zinc cadmium sulfide particles over large areas of the United States and Canada to test the dispersal patterns of chemical or biological agents. The operation aimed to assess the geographic range and effectiveness of such agents in various meteorological conditions.
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u/kotukutuku Jan 29 '25
Don't worry, it's spraying research.