UPDATED as of Sept. 20, 2014 5:43 a.m. MANILA, Philippines (ENS) — More than half a million people were affected by tropical storm “Mario” as it dumped heavy rains in Metro Manila and other areas in Luzon, triggering flashfloods, causing dams to overflow and displacing thousands of affected residents across Luzon island on Friday. The storm also left at least four people dead, five injured and one missing,  according to the National Disaster Risk Reduction […]