Fixing undersea telecom cables

Let's say five fiber-optics communications cables are severed, some thousands of feet beneath the surface. How do you get them back up & running? Well duh, you don't replace the cable down there beneath the waves, you go get the cable and bring it to the surface. But now the question is, how do you retrieve the cable?

Read the full story at Slate: "How do you fix an undersea cable?"