USNS MERCY RETURNS Family members wait for the arrival of U.S. Navy Petty Officer 1st Class David Wagner at the homecoming ceremony for the Military Sealift Command hospital ship USNS Mercy at San Diego, Calif., Sept. 29, 2006. The ship returned from a humanitarian mission. SHARE: Download: Full Size (0.13 MB) Credit: VIRIN: 498259-I-ACX25-833.jpg Photo Gallery