The content originally appeared on: CNN Seoul, South Korea (CNN)A US Navy destroyer sailed near a disputed South China Sea island chain on Wednesday, challenging the restrictions imposed by China and others on transit through the area. Lt. Nicholas Lingo, a spokesperson for the US Navy's 7th Fleet headquartered in Japan, said it was the second so-called freedom of navigation operation in the Paracel Islands - known as the Xisha Islands in China - so far this year, and the […]