This undated handout photo provided by the Shepherd Center shows Jason DiSanto, left, receiving a tongue piercing at Georgia Tech in Atlanta. An experimental device is letting paralyzed people drive wheelchairs simply by flicking their tongue in the right direction. The Tongue Drive System was developed at Georgia Tech and tested at Shepherd Center in Atlanta. (AP Photo/Georgia Tech, Gary Meek)WASHINGTON (AP) — An experimental software is letting paralyzed people pressure wheelchairs simply by flicking their tongue in the proper direction.