Officials in Iraq say they fear several senior al-Qaeda prisoners have escaped in a concerted assault on two prisons near Baghdad. One official said as many as 500 inmates got away from the Abu Ghraib prison. In a similar attack on the Taji prison, officials said the guards stopped anyone escaping. ________________________________ Here's Richard Galpin. 巴格达附近的两个监狱遭到联合袭击，伊拉克官方担心几名基地组织的高级官员已趁机逃走。一名官员说，多达500名囚犯从阿布格莱布监狱逃出。塔基监狱也遭到类似的袭击，官方表示，狱警制止了逃跑的囚犯。___________________________理查德.加尔平报道。
