Four killed in Kabul street clashes over lethal bombing

At least four Afghans were killed Friday as an anti-government protest spiralled into street clashes, with police firing live rounds to disperse hundreds of stone-throwing demonstrators incensed by a catastrophic bombing.Public anger has mounted after an explosives-laden sewage tanker detonated in Kabul's diplomatic quarter on Wednesday, killing 90 people and wounding hundreds of others in the deadliest attack in the Afghan capital since 2001.Hundreds of demonstrators calling for President Ashra