Cubdriver usenet AT danford DOT net writes:

But the pilot in question almost certainly never applied for a (US)
private pilot certificate, or indeed any American pilot certificate.

He still has to communicate in English.

Is there a requirement that a pilot holding a foreign certificate and
flying in US airspace "read, speak" etc the English language? Or
merely that he communicate with ATC in English?

If he's in a movement area of JFK, he needs to speak English.