CHICAGO (AP)--Prosecutors accused an Islamic charity leader of extensive ties with Osama bin Laden's terrorist network, saying he ushered dozens of armed warriors into Bosnia to establish a base there. Enaam Arnaout ``allowed violent persons both inside and outside of the al-Qaida network to flow to areas of conflict and survive there under the cover of an American charity,'' prosecutors said in court papers made public Friday. Arnaout, 41, is scheduled to be sentenced Monday on racketeering charges. He admitted defrauding donors to Benevolence International Foundation by sending supplies to military-style units in Bosnia and Muslim rebels fighting Russians in...