FRANCISCO S. TATAD
THE reported Islamic State (IS) threat, real and hypothetical, has created serious national security problems, both real and imagined. The fighting in Marawi City, which is now on its third week and where the allegedly IS-linked Maute terrorist group has reportedly started using human shields, is just one of these. President Rodrigo Duterte has declared martial law and uspended the privilege of the writ of habeas corpus, not only within Marawi but throughout the entire Mindanao island group in response to the violence. But this has failed to curtail the upsurge of barbarity in the field.