BBC.COM - Mar 23 - Craigslist has closed its dating ads section in the US, in response to a new bill against sex trafficking. The bill states that websites can now be punished for "facilitating" prostitution and sex trafficking. The company said keeping the section open in the US was too much of a risk. In March, US congress passed the Allow States and Victims to Fight Online Sex Trafficking Act (Fosta). It will apply to all states in the US. Websites are not usually held responsible for the content that members post - as long as illegal material is removed as soon as the service provider is made aware.