Facebook overhauls Trending feature after bias claims per BBC News

This BBC report http://www.bbc.co.uk/news/technology-37205029 is fascinating for the lack of investigation they have performed or detail reported. 

'Social media giant Facebook has overhauled the Trending feature on its site to make posts more automated after claims of left-wing bias.'

If there had been claims of right wing bias then the BBC would have investigated the claims, listed some examples and have been outraged. But as it's bias towards the left, towards the BBC's politics, then the BBC are not bothered.