Attkisson resigned from CBS News on March 10, 2014, after 21 years with the network. She later wrote the book Stonewalled, in which she alleged that CBS News failed to give sufficient coverage of Barack Obama controversies, such as the 2012 Benghazi attack.[9] Attkisson has received criticism for publishing stories suggesting a possible link between vaccines and autism,[2][3][4] a claim that has been rejected by the scientific community.[13]