From air and by sea, using radar, telephone and radio, officials watched and listened for 13 hours as the migrant ship Adriana lost power, then drifted aimlessly off the coast of Greece in a slowly unfolding humanitarian disaster. As terrified passengers telephoned for help, humanitarian workers assured them that a rescue team was coming. European border officials, watching aerial footage, prepared to witness what was certain to be a heroic operation. Yet the Adriana capsized and sank in the presence of a single Greek Coast Guard ship last month, killing more than 600 migrants in a maritime tragedy that was shocking even for the world’s deadliest migrant route. 214