Retired Australian swimmer and Olympic gold medalist Grant Hackett makes his way through the isles of a bus as he puts his skills and strength to the test in a wheelchair, in Sydney, Australia, Monday, Nov. 9, 2009  Hackett and other Australian personalities traded walking for wheelchairs to experience the life of a paraplegic as part of spinal awareness week. AP Photo logo AP Photo 1 week ago

Retired Australian swimmer and Olympic gold medalist Grant Hackett makes his way through the isles of a bus as he puts his skills and strength to the test in a wheelchair, in Sydney, Australia, Monday, Nov. 9, 2009 Hackett and other Australian personalities traded walking for wheelchairs to experience the life of a paraplegic as part of spinal awareness week.