ANOTHER weekend, another two thousand-odd immigrants rescued by Italian sailors and coastguards in the Mediterranean. On August 11th the San Giusto, an amphibious transport vessel, landed 1,698 people in Reggio Calabria, a city in southern Italy. The day before, a naval patrol vessel and a frigate disembarked 364 people at ports in eastern Sicily.The number of people arriving in Italy by sea this year may already exceed 100,000. By the end of July approximately 93,000 migrants had been rescued. The previous record for an entire year was set in 2011 when around 60,000 people reached Italian shores at the height of the Arab Spring.The sudden jump in arrivals is related to turmoil in Libya, from where most of the migrant-trafficking vessels depart. Another reason is the Italian government’s maritime search-and-rescue operation, Mare Nostrum, launched last October after 368 Eritreans and others drowned off the island of Lampedusa. The prospect of being picked up by the Italian navy has made the journey on an overloaded and often barely seaworthy vessel seem less scary.Grumbling among right-wing lawmakers apart, public and media reaction to the…