Trouble brewing as upstarts threaten beer king's dominance

Belgium is historically one of the world's top beer countries but Thomas Costenoble, organizer of the Brussels Beer Challenge, fears that trouble is brewing.

This international contest in the Belgian capital, now in its fifth year, features 1,250 beers from 36 countries and 80 judges to sample the tipples on offer.

But Belgians increasingly fear that their centuries-old dominance is at risk from foreign upstart beers that are not afraid to break with tradition.