A young protester runs as others are hit by riot police during clashes Wednesday in Athens. Riot police made heavy use of tear gas and stun grenades to disperse youths throwing stones and petrol bombs during a march attended by 20,000 people to protest the Greek government's harsh austerity measures. (Associated Press)

Photo by: Petros Giannakouris

A young protester runs as others are hit by riot police during clashes Wednesday in Athens. Riot police made heavy use of tear gas and stun grenades to disperse youths throwing stones and petrol bombs during a march attended by 20,000 people to protest the Greek government's harsh austerity measures. (Associated Press)