brake light wiring

I have a 74 Dart which has no brake lights at the moment. All other lights work including the rear signals. I have no power at all coming into the switch but power is good at the fuse block and through the fuse. The wiring between the fuse block and the brake switch seems to go through the steering column/ignition area. Is this correct? Are there any common problem areas between the fuse and the switch to check? Any little pieces auxiliary that could break that circuit in that area?

Thanks