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Recep Tayyip Erdogan

Another ISIS outrage

Another ISIS outrage

The suicide bombers who killed at least 41 people and wounded hundreds more at Istanbul's main airport Tuesday have suddenly upped the ante for the Turkish government and its ambivalent attitude toward the Islamic State terrorists suspected of being responsible. Like the recent attacks in Brussels and Paris, the wanton slaughter of innocent civilians was unforgivable, an outrageous assault not only on Turkey but on all civilized values. The loss of life was horrible, but we also hope it will bring home to Turkey's leaders the folly of believing they could cooperate with ISIS when it was in their interest without fatally compromising their country's security.

Like so many of the...