CHICAGO (AP) -- The metal on Zac Vawter's bionic leg gleamed as he climbed the 103 floors of Chicago's iconic Willis Tower, becoming the first person ever to complete the task wearing a mind-controlled prosthetic limb....
By MICHELLE JANAYE NEALY, Associated Press
Mon, 11/05/2012 - 8:25am
CHICAGO (AP) -- The metal on Zac Vawter's bionic leg gleamed as he climbed the 103 floors of Chicago's iconic Willis Tower, becoming the first person ever to complete the task wearing a mind-controlled prosthetic limb....