CEMENT MIXER U.S. Marine Corps Staff Sgt. Mario Vargas shovels concrete mix into a cement barrel mixer outside an elementary school being built in Caracol, Haiti, Feb. 29, 2012. Vargas is assigned to the Marine Corps detachment embarked aboard High Speed Vessel 2 Swift. The HSV 2 Swift is currently taking part in Southern Partnership Station 2012, a deployment of U.S Naval assets in the Caribbean, Central and South America. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 719768-U-OPQ18-613.jpg Photo Gallery