ARGELES-GAZOST, France >> As his team hoped, Vincenzo Nibali demonstrated he's the "boss" of the Tour de France. Just don't compare him to the last rider to regularly bear that sobriquet at cycling's greatest race, Lance Armstrong.In a tour de force on Thursday, Nibali blew away the peloton on a Pyrenees ascent too tough to be rated in Stage 18, all but locking up victory when the race ends in Paris in three days.