Facebook has denied that it allows its employees to block news stories from its ‘Trending Topics’ list based on political bias, amid a controversy over how the social media superpower selects what news it displays.
It was reported earlier this week that a former Facebook employee said workers ‘routinely suppressed news stories of interest to conservative readers’ while ‘artificially’ adding other stories to the trending list.
The alleged political bias of the social network’s news curation has prompted a US senate inquiry.
Facebook has a global reach and had over a billion daily active users on average in March according to statistics the company posted to its newsroom.
In a post published to Facebook's media relations section on Thursday, a senior company official outlined its Trending Topics guidelines at length.
"Facebook does not allow or advise our reviewers to discriminate against sources of any political origin, period," wrote Justin Osofsky, vice president for global operations.
"We have a series of checks and balances in place to help surface the most important popular stories, regardless of where they fall on the ideological spectrum."
The post went on to explain how certain topics emerge in Facebook users' trending feeds. Potential trending topics are identified by an algorithm, or formula, Facebook said, then reviewed by a Trending Topics team.
The Editor-in-Chief of technology news website Gizmodo, which originally made the allegations, responded to the post with an email saying, "I don't see anything that contradicts our reporting--do you?"
Republican US Senator John Thune, chairman of the Committee on Commerce, Science, and Transportation, has said that Facebook needed to respond to ‘these serious allegations’.
"Any attempt by a neutral and inclusive social media platform to censor or manipulate political discussion is an abuse of trust and inconsistent with the values of an open Internet," he said.
Facebook recently alleged that government requests for user account data increased by 13 per cent in the second half of 2015, with the United States and India making the most requests.