2020-04-09 UTC
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@ChasAHKnight ↩️ @levijwest told me about visiting a cracking museum in Columbia dedicated to these. Maybe in the now shifting geostrategic order others will take the microsub path blazed by the Italians in 1930's, followed by the Yugoslavs in the 1980's and now practiced by the Iranians. (twitter.com/_/status/1248374615962877952)