The cars still zip over London Bridge at their typical fast clip, drawing little obvious attention.When the great city is ticking along, its residents barely notice its unique cosmopolitan blend, its seemingly effortless mix of dozens of different cultures.But some pedestrians walking the bridge over the River Thames each day say they find themselves glancing at the passing traffic and wondering: Is that the one? İs that the one that's going to swerve my way? The one whose driver wants to kill me for reasons i'll never quite grasp?
