It was never the official flag of the Confederacy. But the battle flag has since been claimed by white supremacists and mythologized by others as an emblem of a rebellious Southern heritage.
The symptoms of post-traumatic stress disorder have been recorded for millennia, but it took more than a century for physicians to classify it as a disorder with a specific treatment.
The sudden confinement of millions to their homes could have serious mental health effects, and scientists are already studying this unprecedented experiment.