The CDC report says there's no strong evidence of any racial or ethnic difference in risk factors for autism and that it's likely the condition is underdiagnosed in blacks and Hispanics.

MSN: As more autism reported, doctors say check early

And increased contact highlights points of difference as much as a shared ethnic and cultural heritage.

ECONOMIST: Banyan

But like many here, he warns of the deep Balkan-style ethnic tensions that still simmer in the DR Congo and compares the situation to Ivory Coast - "the only difference there is that the incumbent lost".

BBC: DR Congo vote: The dangers of democracy