U.S. Sen. Charles Schumer, D-N.Y., sent a letter Sunday to the Federal Trade Commission calling for regulators to draw up clearer privacy guidelines for Facebook and other Internet social networks to ...

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And they certainly don't address some of the substantive privacy issues the social network faces. Here are five of the biggest questions we still have about Facebook's privacy policies.

The Irish DPC said it shares the concerns of the Garante, Italy's data protection regulator, which also asked Facebook for information in September to assess the product's compliance with privacy ...