CITY OF MALOLOS, Bulacan — Heavy rains caused flooding that rendered parts of major roads in Bulacan, including the North Luzon Expressway (NLEX) and MacArthur Highway, impassable to some vehicles, the Bulacan Provincial Disaster Risk Reduction and Management Office (PDRRMO) said Sunday. Manuel Lukban Jr., head of the Bulacan PDRRMO, said the road conditions were