Presenter Sebastian Walker explains why the rebels are willing to take up antiquated arms in this video extra from the upcoming episode of Al Jazeera Fault Lines.br br "I think most of these weapons are ones that have been liberated from the Qadaffi forces....Some of [the guns] date back to the second World War."br br The new episode of Fault Lines, "The US and the New Middle East: Libya," first airs on Al Jazeera English July 18, 2011 at 2230 GMT.