Serbian police question billionaire retail tycoon Miskovic

BELGRADE (Reuters) - Billionaire retail tycoon Miroslav Miskovic, one of Serbia's most influential figures, was questioned by police on Monday as part of what the nationalist government says is a drive to root out graft, a key condition for joining the European Union. Related Stories Iran shuts schools, offices in capital due to high pollution Greek Socialist party expels lawmaker for forming