MANILA— Three passengers arriving from Bangkok, Thailand were arrested after authorities intercepted around 18,679 grams of marijuana worth an estimated ₱18.679 million at the Ninoy Aquino International Airport (NAIA) Terminal 3, the Bureau of Customs (BOC) said. The BOC-NAIA, working with the Philippine Drug Enforcement Agency (PDEA), discovered the suspected illegal drugs during an anti-drug…