TICKLE TEST U.S. Navy Petty Officer 2nd Class Chester Perez, center, tickles a child during a community event at the Sung Ae Won Orphanage in Busan, South Korea, Jan. 13, 2011. Perez, an aviation electronics technician, is assigned to the USS Carl Vinson, which is deployed to the western Pacific Ocean. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 190097-D-CCW23-094.jpg Photo Gallery