"The first public indication that something was amiss at the shipyard near Wuhan came...when Thomas Shugart, a former U.S. submarine officer and an adjunct senior fellow at [], wrote a series of social-media posts noting the unusual activity..."
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Tom Shugart
@tshugart3
So, I recently acquired some updated imagery from Wuchang Shipyard in Wuhan - China's primary shipyard for non-nuclear submarine construction.
It appears there may have been something...odd going on there in June. 
GIF
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