Nor is there much in the notion that, once a single currency is in operation, profligate sovereign borrowers will weaken it or push up interest rates.

ECONOMIST: Europe's mid-life crisis

This was not one single operation in aftermath of a rapprochement with Gaddafi.

BBC: Gaddafi

Mr. MICHAEL CHERTOFF (Secretary of Homeland Security): The largest single worksite enforcement operation against a company in American history.

NPR: Rumors of Immigrant Round-Up Abound

This will make close co-operation between regulatory authorities a necessity as has been demonstrated in the joint governance of the Single Electricity market in Ireland.

BBC: Scotland politics

The putative defendants did not carry out a single belligerent act, conduct a single interrogation, or direct the operation of any military or intelligence agents actually engaged in hostilities.

CENTERFORSECURITYPOLICY: Spain's 'universal jurisdiction' power play