Scott Atlas, the controversial Trump coronavirus adviser, apologized Sunday after appearing on Russian state TV.Atlas appeared on RT, formerly known as Russia Today, which the U.S. government designates as a propaganda outlet.“I recently did an interview with RT and was unaware they are a registered foreign agent,” Atlas tweeted. “I regret doing the interview and apologize for allowing myself to be taken advantage of. I especially apologize to the national security community who is working hard to defend us.”Atlas did not apologize for the content of his appearance on the Russian propaganda ch…