Xi Jinping fumes as U.S warship tests water in South China Sea | Another irritant in Sino-U.S ties?

China's military claimed on Tuesday to have driven away a U.S. guided-missile cruiser that 'illegally intruded' into waters near the South China Sea's Spratly Islands. The U.S. Navy refuted China's claim and described it as 'the latest in a long string of PRC actions to misrepresent lawful U.S. maritime operations. China's tall claims in the South China Sea and the region have become one of many flashpoints in the testy ties between the two superpowers. Watch this video for an in-depth understanding.