THE 8,600-TONNE ship bobbing in the bay of Nagasaki, in Japan’s south, is aptly named. The Kizuna, which means “bonds” in Japanese, is a cable-laying vessel. It is equipped with robots that can descend 3,000 metres under the sea to install and repair the subsea cables that allow millions of Asians to message friends, shop online, trade stocks and read this article. It is a task that has become mor