LONDON, Reuters – Facebook’s algorithms designed to encourage divisive content will lead to more violent unrest in the world, Frances Haugen, whistleblower for Facebook told the British Parliament on Monday.

Haugen is an ex-product manager for Facebook’s civil misinformation team. He was appearing in front of a British parliamentary select panel that examines plans to regulate social media firms.

According to her, the social network saw safety primarily as a cost center and slammed a culture of start-ups that cut corners. She also stated it made hate even worse.

She stated that “the events we are seeing in the world, like Myanmar or Ethiopia, these are the beginning chapters because engagement-based rank does two things. One, it prioritises extreme and divisive content and two, it concentrates them.”

The algorithms push users to extremes, she said. She stated, “So someone central left, they will be pushed toward radical left; someone central right, they’ll pushed towards radical right.”

Facebook CEO Mark Zuckerberg rebutted Haugen’s claims, saying that earlier in the month “The argument that Facebook deliberately promotes content that angers people for profit is profoundly illogical.”

Reuters and other news organizations viewed the documents that were released by Haugen to Congress and U.S Securities and Exchange Commission.

They also showed Facebook knew that Facebook hadn’t been able to hire enough language- and event-skilled workers in order to detect objectionable content from people living abroad.