welcome to bbc news. i m sally bundock. our top stories: borisjohnson will pledge to move the entire uk towards higher wage, move the entire uk towards higherwage, highs move the entire uk towards higher wage, highs gill employment but with the cost of living rising, will he win over the audience? facebook harms children, stokes division, the claims from a whistleblower and the shares go up. we get an expert view. and mark zuckerberg is among the world s richest. the latest forbes list is out and donald trump drops off for the first time in 25