Angle of attack indicators -- do we need them?
And if so, when would we use them? I guess in most cases during unreliable airspeed or in manouvers at the edge of the flight envelope. Then again flying at the limits in a FBW protected airplane (i.e. the bus) you would probably relie on the protection and not spend time wathcing an AoA indicator.
Those of you who fly Boeing machines with AoA indicator installed, do you ever actually use it?