By Angus McDowall Al-Dalwah, Saudi ARABIA, **v 6 (Reuters) - On Monday Sunni militants attacked a Shi'ite Muslim village in Saudi Arabia and left eight people dead. By Wednesday, grief among the villagers was mixed with anger about a culture of sectarianism they say paved the way for the shooting. With civil wars in Iraq and Syria **w being fought along mainly sectarian lines, Saudi Arabia's Shi'a mi**rity feels increasingly vulnerable in a country where anger is rising among the majority sect at the plight of Sunnis in other countries. ...