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The unrest in South Sudan takes even darker turns, as we hear about summary executions and that Bentiu, the capital of oil-rich Unity State, has fallen to troops supporting former Vice-President Riek Machar.

Why the US President Barack Obama's admitted he's "screwed up" on the roll out for Obamacare.

A scientist tells us how taxing your hamburger could save the planet.

And another scientist takes us through some festive science, including why eating sprouts can have unpleasant side-effects.

4 hours

Last on

Mon 23 Dec 2013 01:00
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