Clashes in Bahrain as police block protest march

DUBAI (Reuters) - Protesters trying to march to the heart of Bahrain's capital clashed with riot police on Friday, witnesses said, hours after a massive show of force by the mainstream Shi'ite Muslim opposition. They said dozens of youths threw stones at police who used teargas and stun grenades to block the planned march to the Pearl roundabout, the centre of an uprising last year which the