And hangover or no, the EU's leaders must go straight to work selling Europe's more sceptical electorates on the virtues of their new constitution.

ECONOMIST: Finally, a constitution. Now the hard part | The

For this to work, the light from the cancer cell has to go through the round filtering lenses in a straight line.

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Making young criminals confront the consequences of their actions seems to work better than prison in making them go straight in future.

ECONOMIST: Restorative justice