It's a confusing and complicated story, and also not well-reported. The bottom-line is that this is the tip of a very large iceberg. Its nature and scope of must be understood, now.
The lawyer noted that Facebook doesn't put its users under any obligations and if users want they can easily delete Facebook as well as WhatsApp and stop using the service.
2012/03/14: The short answer: because the company always wants to know more about you and your relationships.
Of all Facebook's data sets, it's the social graph that's truly unique. It's spent nine years getting you to confirm who you know, and apparently it's sick of handing over your friend list to competitors. This week it cut off both Twitter's new photo app Vine and messaging app Voxer from Find Frien
Will Facebook be required to allow info transfer to *gasps* Google+?