Fact-checking Zuckerberg's statement defending company

Following congressional testimony from whistleblower Frances Haugen, in a Facebook post Tuesday night the company's CEO, Mark Zuckerberg, pushed back against Haugen's allegations that the tech giant is hiding research about its shortcomings from investors and the public.

In a 1,300-word statement, Zuckerberg defended Facebook's services and, appealing to its employees, suggested that both their work and the company as a whole were being misrepresented.

Here's a look at what Zuckerberg claimed and what we know.

In response to claims from Haugen and an investigation by the Wall Street Journal that Instagram, which is owned by...