▁he ▁received ▁a ▁master ' s ▁degree ▁in ▁emer gency ▁medical ▁services ▁from ▁the ▁Joh ns ▁Hop kins ▁University ▁School ▁of ▁H yg iene ▁and ▁Public ▁Health ▁( now ▁known ▁as ▁the ▁Joh ns ▁Hop kins ▁School ▁of ▁Public ▁Health ) ▁and ▁later ▁became ▁a ▁member ▁of ▁the ▁Joh ns ▁Hop kins ▁Working ▁Group ▁on ▁Civil ian ▁Bio ▁Def ense . ▁He ▁wrote ▁several ▁articles ▁on ▁possible ▁bio ▁terror ist ▁attacks . ▁On ▁April ▁ 1 0 , ▁ 1 9 9 8 ▁H auer ▁attended ▁a ▁" round table ▁on ▁gen etic ▁engineering ▁and ▁bi ological ▁weapons " ▁under ▁President ▁Bill ▁Cl inton . Dr . ▁H auer ▁holds ▁a ▁Ph . D . ▁from ▁the ▁Def ence ▁Academy ▁of ▁the ▁United ▁Kingdom , ▁C ran field ▁University . ▁ ▁H auer ▁was ▁known ▁for ▁his ▁pione ering ▁work ▁on ▁aut otr ans f usion ▁in ▁card iac ▁surg ery ▁and ▁tra uma . ▁ ▁In ▁ 1 9 7 8 ▁H auer ▁developed ▁the ▁first ▁unit ▁to ▁re inf use ▁blood ▁lost ▁following ▁card iac ▁surg ery , ▁reducing ▁the ▁risk ▁of ▁he pat itis . ▁ ▁That ▁work ▁reduced ▁before ▁mor bit iy ▁and ▁mort ality ▁in ▁these ▁patients . ▁ ▁He ▁was ▁issued ▁a ▁pat ent ▁for ▁his ▁device . ▁ ▁Before ▁he ▁became ▁a ▁Giul iani ▁commission er ▁he ▁had ▁previously ▁run ▁emer gency ▁management ▁programs ▁for ▁the ▁State ▁of ▁Indiana ▁and ▁IBM . ▁ ▁On ▁September ▁ 1 1 , ▁ 2 0 0 1 , ▁Jer