BAGHDAD, Iraq - Iraq (news - web sites)'s interim prime minister went to Jordan on Tuesday for meetings with tribal figures and other influential Iraqis in a bid to encourage Sunni Muslims to participate in the Jan. 30 elections, but he ruled out contacts with insurgent leaders and former members of Saddam Hussein (news - web sites)'s deposed regime. Insurgents targeted U.S. troops Tuesday in Baghdad and in and around Beiji, a city north of the capital, killing four Iraqi civilians and wounding at least 20 other people, including three U.S. soldiers. Three Iraqi children aged 3, 4 and 5 were killed when two mortar rounds struck their neighborhood in Baqouba, the U.S. military said