It’s been a big week for the Federal Trade Commission. A court on Monday threw out the agency’s antitrust complaint against Facebook and told it to come back with a stronger argument. On Thursday, Lina Khan chaired her first meeting as the new head of the Federal Trade Commission and started making changes right out of the gate, expanding the agency’s antitrust powers. Khan is famous for her antitrust arguments against Amazon, but she’s also written on the role privacy concerns could play in attempting to regulate big tech firms like Facebook. Marketplace’s Kimberly Aadms speaks with Issie Lapowsky, a senior reporter for Protocol, who dug into this part of Khan’s background, especially a 2019 article she co-authored on the idea of “information fiduciaries.”