LUCENA CITY, Quezon - Philippine Drug Enforcement Agency (PDEA) Director General Isagani Nerez said they have further strengthened coastal defense mechanisms through continuous patrols and engagement with fishing communities to prevent the entry of tons of illegal drugs through the country's waters .Nerez, in a dialogue with fisherfolks of Lucena on Tuesday, August 11, said they need to collaborate with authorities by giving information or surre…