The 27-nation EU's executive Commission said Thursday it was opening a formal investigation into Snapchat under the bloc's sweeping rule book known as the The European Commission said that Snapchat requires users to be at least 13 to use the platform but it suspected that the company's "age assurance" system is "insufficient" at keeping them off. Regulators said the platform is also exposing teens to inappropriate content because it's not properly checking whether a user is under 17. And they worried that ...