mitchell: good evening. we begin tonight with a conflict in libya where many in congress believe the 90 day deadline has been reached to seek aful po for military action under the war powers act. the main rebel stronghold in the west. well in irthe eastern stronghold rebels said today they had run out of money. and late today nato acknowledged that one of its air strikes went off course last night in tripoli and maybe to blame for civilian casualties. allen pizzey is in tripoli tonight and begins our coverage. reporter: what almost certainly was a tragic blunder by nato at first looked like it might be another propaganda attempt bit libyan authorities. just after 2:00 sunday morning journalists were brought to this site. the neighborhood known as souk al-juma has been a focal point of protests against the regime of moammar qaddafi but for once politics took second place to a rescue effort conducted with little organization and the lot of brute force. this was said to be