During his term as chairman of the African Union in 2009, he renewed his calls for a "United States of Africa" that would use a single passport, a single military and a single currency.

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On their surface, the new rules would provide for a single EU passport for hedge funds.

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It will have the power to detain people for criminal activities including terrorism - not just customs and immigration offenses - and will combine passport and customs checks in a single border checkpoint, Brown said.

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Today Aachen is prospering, democracy is firmly rooted, no passport is required to visit neighbouring, or more distant, countries and much of the continent enjoys a single currency.

ECONOMIST: Charlemagne