By David Heath / Nick Penzenstadler / USA TODAYThe U.S. Food and Drug Administration abruptly shut down sales of at-home coronavirus test kits earlier this month but some companies say they haven’t given up.The scarcity of tests in general, coupled with consumers’ desire to take control, makes the idea both intriguing and controversial.Critics say home tests may be unreliable, might delay necessary treatment and could soak up scarce resources.Read more on NewsOK.com