2002 INFINITI QX4 Wheels Problems

WHILE DRIVING MY 2002 INFINITI QX4 WITH THREE OTHER ADULTS AND AN INFANT IN THE AUTO, THE ENTIRE HUB OF THE RIGHT REAR WHEEL BROKE AWAY AND AFTER CAUSING DAMAGE TO THE SIDE AND DOOR OF THE CAR, CONTINUED TO FLY DOWN THE STREET. I WAS TRAVELING AT 40 MPH ON A SUBURBAN STREET. THE POLICE OFFICER WHO ASSISTED TOLD US THAT WE WERE LUCKY TO BE ALIVE. FLETCHER JONES/CHICAGO WHERE THIS VEHICLE WAS PURCHASED NO LONGER HANDLES INFINITI SO THE CAR WAS INSPECTED AT INFINITI OF LISLE, ILL. ALTHOUGH THESE WHEELS ARE THE ORIGINAL WHEELS PURCHASED ON THE VEHICLE, THEY CLAIM NO RESPONSIBILITY AND HAVE REPORTED ALL THREE OTHER WHEELS IN DANGER OF THE SAME FAILURE. I HAVE SOUGHT THE ASSISTANCE OF INFINITI'S CONSUMER AFFAIRS AND REGIONAL SPECIALISTS AND HAVE E-MAILED THEIR CORPORATE HDQRTRS OFFERING PHOTOS AS THIS IS A HUGE SAFETY ISSUE. I HAVE NOT RECEIVED AN ANSWER....