brake light failure

[RedTriumphTr6@aol.com]

Listeners,  My car's brake lights went out last night.  Fuse is okay.  What 
should I check next?  Would a burned out brake light lamp/bulb cause failure 
to the other light/all lights?  Suggestions for what I would assume is a 
common/simple repair? By the way, no rain/leakage into the tail light lenses 
ever, far as I can tell.
                                                                              
redtriumphtr6@aol.com (Bob Pierson)