Facebook's Zuckerberg Scolds Obama

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Mark Zuckerberg takes the White House to task over the NSA's internet privacy violations, we have the latest from New York. Queues form at ATMs across Crimea as citizens rush to withdraw their savings ahead of this weekend's referendum on whether to become part of the Russian Federation. Also on the programme 'Tiger Mom' Amy Chua and husband Jed Rubenfeld are in the studio to discuss the taboo subject of cultural reasons behind inequality in the US; and the BBC's North America technology correspondent, Richard Taylor, gives us a round up of this year's South by Southwest Festival in Austin, Texas. Joining us from his home in Toronto is Ralph Silva, CEO of the Silva Research Network, and our regular contributor Jyoti Malhotra takes part from her home in Delhi. Finally, Celia Hatton, the BBC's Beijing correspondent, explains why the Rolling Stones weren't allowed to play Honky Tonk Women during their latest Shanghai gig.