There are also large benefits in making it harder for Washington to spy on Beijing. I saw a news report 15 years ago or so saying that the Kremlin went back to

There are also large benefits in making it harder for Washington to spy on Beijing. I saw a news report 15 years ago or so saying that the Kremlin went back to using mechanical typewriters out of worry that Western intelligence agencies can exfiltrate data from the Kremlin's computers.