 Complete the following phrase:  Humayun Khan was a Pakistani-American born in the United Arab Emirates on September 9, 1976, to Pakistani parents. After graduating from the University of Virginia in 2000, he joined the U.S. Armys 201st Forward Support Battalion, 1st Infantry Division. Throughout his four years of service, he rose in ranks to become an officer in the U.S. army before being killed by a car bomb June 8, 2004, saving the lives of his fellow soldiers. Republican presidential candidate Donald Trumps temporary immigration ban based on a list of terror linked countries created under the Obama administration brought Khans parents, Khizr and Ghazala Khan, into the public spotlight as they addressed Trump at the 