In December 2013, Couric ran a segment on the HPV vaccine which critics accused of being too sympathetic to the scientifically unsupported claims that this vaccine was dangerous. For example, Seth Mnookin accused her broadcast of employing false balance. In addition, Alexandra Sifferlin, of "Time" magazine, compared Couric to Jenny McCarthy, a well-known anti-vaccine celebrity. On December 10, 2013, a week after the original segment was aired, Couric posted an article on "The Huffington Post" responding to this criticism, in which she stated: