Facebook, M&S and Mad Men: Everything that matters this morning

Facebook clamps down on developers using it for surveillanceFacebook says it will ban developers from using its user data for surveillance purposes.
According to the social media giant, a series of new updates, which also apply to other Facebook-owned platforms such as Instagram, will “more clearly explain” its policies against surveillance tools developed for law enforcement purposes.
In a post on Facebook, its deputy chief privacy officer Rob Sherman cited