Whats the president of the Philiipians doing about this, Duterte should hunt and kill them the same way he does the drug addicts and sellers. This brings total shame and will in some way hurt tourism revenues.
Hunting these Abu sayyaf and killing them might spark a war and life will be paid by life. Duterte, said on one of his interviews that sacrificing those life will be hard for him. Soldiers just can't barge in the southern Philippines and hunt them. He is ready to make peace unto this people, he told him himself, he is ready to talk with them.