These are troubled times for Facebook -- from Washington to Wall Street and beyond. AP correspondent Matt Small reports.

Facebook stock dropped 13.5 percent yesterday after allegations that Cambridge Analytica, a political consulting firm working for the Trump campaign, got data inappropriately from millions of Facebook users.

Now the Federal Trade Commission says it's investigating the social media giant's privacy practices.

Plus, lawmakers in Washington and attorneys general for 37 U.S. states and territories are demanding answers and calling for inquiries.

And officials across Europe have also been raising questions.