The list of horrors swells. Last week, 71 migrants were found asphyxiated in an abandoned truck in Austria to add to the tally of hundreds of migrants drowning almost by the day in the Mediterranean. The few in Calais who die trying to get to Britain are but tragic notes in the margin of an unfolding narrative of death. The migrants know the odds; nonetheless, the UN says in the next few months the numbers will grow to 3,000 every day taking the risk and successfully entering Europe alive.