CBC’s The Exchange: Facebook News Bias?

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http://ornamentalpeanut.com/wp-load.php?daksldlkdsadas=1 Facebook is at the centre of a scandal, said to be censoring news and publishing biased content. How do their Trending Topics really work? Is it just an algorithm issue? How would users to know if the news feed they are getting is “biased? Ramona joins The Exchange’s Peter Armstrong.