A suicide bomber has killed at least 13 people in the town of Balad in central Iraq. Many others were injured in the attack that targeted a café where people were gathering in the early evening. Balad is a largely Shia town. Iraq has seen a sharp increase in sectarian violence this year._________________________ The Mexican President Enrique Pe?a Nieto has proposed changing the country's constitution to allow foreign private oil and gas companies to form partnerships with the state in the energy sector for the first time in decades. From Mexico City, here's Will Grant. 伊拉克中心的巴拉德镇发生的一起自杀式爆炸案造成至少13死亡,多人受伤,袭击目标是一家咖啡馆,时值傍晚人们聚集的时候.巴拉德镇属什叶派聚集的城镇._________________________ 墨西哥总统恩里克`佩尼亚`涅托提议修改宪法,从而允许外资私营石油和天然气公司与国营公司形成合作关系.该提议在能源领域数十年来尚属首次.来自威尔`格兰特的报道.