With Warships, U.S. Navy Challenges China's Man-Made Islands Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email The USS Fort Worth patrols the South China Sea (July 7, 2015) ( U.S. Navy photo by Mass Communication Specialist 2nd Class Joe Bishop/Released / U.S. Navy ) Produced by PRI and WNYC