The World's Jeb Sharp profiles the UN's top humanitarian official, Jan Egeland. Egeland has coordinated a massive relief operation in the Darfur region of Sudan, that's credited with saving hundreds of thousands of lives. He is set to retire at the end of this year.

Where in the world will we go today?

Host Lisa Mullins has the latest on the radiation scare in Britain following the poisoning death of a former Russian spy there. Investigators have found radiation in several places visited by the former spy and on at least four British airplanes.

Today's answer is Aberdeen, Scotland.

The World's Andrea Crossan profiles Canadian fiddler Ashley MacIsaac. MacIsaac has a new record out that's more punk than traditional fiddle music. But he's also an aspiring politician who some day hopes to be Canada's prime minister.