U.S. Navy LT. Tara Collins attached to the U.S. Navy Military Sealift Command Hospital Ship, the USNS MERCY (T-AH 19), uses a black light to show local nurses germs during a hand washing lecture. The USNS MERCY (T-AH 19) which operated off the coast of Kupang, Indonesia provided humanitarian assistance to local residents. Aug. 24, 2006. (U.S. Navy photo by Mass Communication SPECIALIST 2nd Class Erika N. Jones) (Released)