US' Food and Drug Administration (FDA) Commissioner Stephen Hahn on Tuesday apologized for overstating the life-saving benefits of treating COVID-19 patients with plasma. His apology follows an outcry from medical experts who have been pushing back against FDA's earlier authorization of plasma use in treating Covid patients. Hahn tweeted saying the 'criticism is entirely justified'. He also admitted that he should have said the plasma treatment ensures 'relative risk reduction and not absolute risk reduction'. Trump had hailed the decision as a historic breakthrough even before the treatment’s value could be established.