Increasingly provocative behavior by China in the disputed South China Sea means it is "only a matter of time" before a major incident or accident occurs in the region, a U.S. Defense Department official warned Tuesday."In recent months, we've witnessed a sharp increase in unsafe and unprofessional behavior by PLA ships and aircraft, implicating not only U.S. forces but allied forces operating in the region," Ely Ratner, assistant secretary of defense for Indo-Pacific security affairs, told a think tank event in Washington, using the acronym for the People's Liberation Army, the Chinese mil…READ FULL ARTICLE