Cuba Sonic Thing Gets Bigger and Weirder

We all know about the weird "sonic crisis" with Cuba, which is one of the oddest episodes in the history of U.S.-Latin American relations. Now it's in China too.

But with Americans now exhibiting similar symptoms in Guangzhou, American officials have raised suspicions about whether other countries, perhaps China or Russia, might be to blame.

Back in February I looked at all the players. I had of course included Russia but not China. If this is indeed the same phenomenon, could Russia really be doing it as a third party in two different countries? I don't think there's precedent for this in Russia-China relations, which historically have been rocky. This development doesn't make anything clearer at all.

Meanwhile, scientists can't agree on what's even going on and what's possible. The argument has spilled over into the academic world and academic journals, where it can get really nasty!