Online giants Google and Facebook are facing renewed criticism over potential privacy violations, as both companies roll out new policies for how they deal with users' data.<br /><br />The companies say that their new policies make it easier to keep track of what users are sharing, but critics say that ease cuts both ways - potentially making it easier for users to mistakenly share data they would rather keep private.<br /><br />Al Jazeera's Tom Ackerman reports from Washington, DC, the US capital.
