Facebook says it bans U.S.-designated terrorist groups. But the platform has generated more than 100 pages for groups like Islamic State and Al Qaeda.

Crisis pregnancy centers pose as abortion clinics but push an anti-abortion message. Google is helping them reach their target audience of low-income women.

Facebook bans ‘militia communities.’ But it’s hosting an array of militia groups that push misinformation about migrants at the U.S. southern border.

Facebook prohibits the buying and selling of accounts. But the platform hosts a thriving black market for Facebook business manager accounts that can run multiple ad campaigns.