It could be. But in this case it is the name for marks China put on its maps in 1947, laying claim to the Spratly Islands, Scarborough Shoal and Paracel Islands in the South China Sea.

Is it also sometimes called the nine-dot line? Yes — and that could be “his” in Morse.

Why are we talking about it now? In the past few months, China is reported to have been building up coral reefs in the area to make them into fully fledged islands in what is believed to be an attempt to enforce its claim on the territories.

But