Facebook co-founder and CEO Mark Zuckerberg arrives to testify on Capitol Hill October 23, 2019, in Washington. Zuckerberg’s confidential tax data was included in information an anonymous source delivered to ProPublica. (Chip Somodevilla/Getty Images North America/TNS)
Secret tax data confirms Jeff Bezos, Elon Musk, other billionaires pay little or no income tax, ProPublica reports
