As problems pile up, Mark Zuckerberg stands his ground in exclusive CNN Business interview

After spending much of this year apologizing for Facebook's many missteps, CEO Mark Zuckerberg was defiant in an exclusive interview with CNN Business on Tuesday.

Zuckerberg resisted growing calls for changes to Facebook's C-suite, reiterated Facebook's potential as a force for good, and pushed back at some of the unrelenting critical coverage of his company after a year of negative headlines about fake news, election meddling and privacy concerns.