US Vice President Kamala Harris on Tuesday visited a Philippine island near waters claimed by China, vowing to rally against “unlawful and irresponsible behaviour” to protect communities, their livelihood and the environment. Harris is the highest-ranking US official to ever visit the western Philippine province of Palawan near the disputed South China Sea. She met community leaders and residents from the fishing village of Tagburos in Puerto Princesa City, who told her about how the fishing industry not only provides food for residents but “serves as the economic live blood of the island.” Sh…