When Facebook bought WhatsApp, some were worried that the messenger would go back on its promise not to collect swathes of personal data in the style of its new owner. Luckily for you, the FTC has other plans, and will only give its blessing to the $19 billion deal if both companies swear to respect WhatsApp's original user agreement. In a letter to the pair, FTC consumer protection chief Jessica L. Rich has said that if WhatsApp pulls a privacy bait-and-switch , then Zuckerberg and co. will be in breach of section five of the FTC act, with harsh penalties to follow.