The Guardian view on danger at sea: The contrast between the frantic hunt for a missing submersible and the failure to save migrants drowning in the Mediterranean is illuminating

A massive operation is under way to find and save a stricken vessel and its passengers. As time passes, anxious families and friends wait with growing fear. The US coastguard, Canadian armed forces and commercial vessels are all hunting for the Titan submersible, which has gone missing with five aboard on a dive to the wreck of...