By Kim Gamel BAGHDAD -- Guards with an Australi

By QASSIM ABDUL-ZAHRA BAGHDAD - Weeping mourners called for justice Wednesday at a funeral for two Armenian Christian women killed while driving in Baghdad - the second shooting of civilians involving a security firm linked to U.S. government-financed work in Iraq in less than a month.

U.S. and Iraqi officials Wednesday were investigating yet another shooting of Iraqi civilians by a heavily armed security firm linked to U.S. government-financed work in Iraq.

Guards working for an Australian-owned security company working for a company contracted by USAID fired on a car as it approached their convoy Tuesday, killing two women civilians before speeding away from the latest bloodshed blamed on the deadly mix of heavily armed protection details on Baghdad's crowded streets.

Guards working for an Australian-owned security company fired on a car as it approached their convoy Tuesday, killing two women civilians before speeding away from the latest bloodshed blamed on the deadly mix of heavily armed protection details on Baghdad's crowded streets.