A ship’s anchor damaging one of the cables which supplies East Africa with vital broadband, as it docked in Kenya, and squeezing the region’s internet capacity in the process, has drawn attention to the invisible undersea network on which so much of the region’s communication now depends. The Guardian reports a 20% slowdown in Kenya, Tanzania, Ethiopia, Rwanda, Burundi and South Sudan as a result (fortunately two other cables mean that connections have not been entirely lost). The Guardian’s brilliant datablog published an interactive map (created by TeleGeography) which offers a great view of the world’s global cable network.