The refugees — more than half of the 32,000 who have reached Italy so far this year come from Syria, Somalia or Eritrea — have no experience at sea. The boats leak, they run out of fuel, they catch fire, and nobody knows what to do about it. In many cases, the boats just capsize when everybody rushes to the same side to call for help from a passing ship or aircraft.Then they are in the water, and of course there are no life-jackets. last week, when 359 Somali and Eritrean migrants drowned in a single boat, nobody even had a satellite phone to summon help. Most of the migrants can't swim, and even those who can often drown before help arrives. Every sinking brings stories of parents who could swim, but had to choose which children to save.