
Zenga zenga, dar dar!" ["Alley to alley, house to house."] That was the battle cry of Muammar Gaddafi and his sons when they unleashed their forces on the rebels six months ago. Now the phrase may be coming back to haunt the Gaddafis, if they are, in fact, hiding where the rebels believe they are.On Thursday, closing in on a string of neighborhoods in central Tripoli, rebels often moved house to house through the narrow streets of Ghabour and Abu Salim — two of Gaddafi's last known strongholds in the Libyan capital. Taking cover behind walls and concrete barricades, groups of fighters from towns across the country dodged sniper fire and waged...