In the night between April 18th and April 19th a boat filled with up to 950 migrants sank in the Mediterranean Sea, 70 miles north of Libya, while trying to reach the southern European border. This was not only the greatest tragedy to date involving migrants in the Mediterranean Sea, it is also the last of a long series of deaths: around 14,600 from 1993 to November, 2012; 900 in little more than a year from January, 2014 to April, 2015, before this latest tragedy.

In face of between 700 and 900 deaths, it is difficult to write a series of numbers and data, when anger, sadness, and shame would seem to be a more appropriate response. …