FRONTLINE investigates a series of warnings to Facebook as it grew into a global empire.

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A series of mounting crises at Facebook, from the company’s failure to protect users’ data, to the proliferation of “fake news” and disinformation, have raised the question: How has Facebook’s historic success brought about real-world harm?

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Funding for FRONTLINE is provided through the support of PBS viewers and by the Corporation for Public Broadcasting. Major funding for FRONTLINE is provided by the John D. and Catherine T. MacArthur Foundation and the Ford Foundation. Additional funding is provided by the Abrams Foundation, the Park Foundation, The John and Helen Glessner Family Trust, and the FRONTLINE Journalism Fund with major support from Jon and Jo Ann Hagler on behalf of the Jon L. Hagler Foundation.