How dangerous is chlorinated chicken?

Chlorine-washed chicken from the US has become a totemic issue in the post-Brexit trade deals Britain could look to secure. But is it unsafe? And what does it say about the different attitudes to food production on either side of the Atlantic? Also today: Israelis go to the polls for their second election of the year. Help support our independent journalism at <a href="https://www.theguardian.com/infocus">theguardian.com/infocus</a>