Article Photos: US gov't had role in Ebola drug given aid workers 4/7

Dr. Kent Brantly and his wife, Amber, are seen in an undated photo provided by Samaritan's Purse. Brantly became the first person infected with Ebola to be brought to the United States from Africa, arriving at at Emory University Hospital, in Atlanta on Saturday, Aug. 2, 2014. Fellow aid worker Nancy Writebol was expected to arrive in several days. Experts say Emory University Hospital is one of the safest places in the world to treat someone with Ebola, the virus that has killed more than 700 people in Africa. (AP Photo/Samaritan's Purse)