"Northern Ireland has a lot to offer potential investors with our skilled work force and world class education system, " he added.

BBC: Peter Robinson and Martin McGuinness in Sao Paulo

In Britain we call this the class system at work.

BBC: Class calculator: A US view of the class system

He had been hired to work on a class of immune-system proteins called interleukins, but he had a better idea: He proposed, instead, that the two of them work on cloning the receptors for TNF.

FORBES: The Maverick and the Maestro