8 of 12:
Retired Infantryman Brendan M. Marrocco wheels himself into a news conference followed by lead surgeon W.P. Andrew Lee, M.D., Tuesday, Jan. 29. 2013 at Johns Hopkins hospital in Baltimore. Marrocco received a transplant of two arms from a deceased donor after losing all four limbs in a 2009 roadside bomb attack in Iraq.
(AP Photo/Gail Burton)