>>Where do the extents of a 'public performance' end? Radios on in cabs?"
That royalty collecting agent has already done that in Hong Kong (it was a British colony) 20 years ago. It may just politically too incorrect to carry out the same extortion campaign back in Britain at that time. They sent undercover agents around to ride taxis, visiting small mom-and-pa shops. Then they show their ID and the recording industry style letter to extort thousand dollars of money. They are greedy bastards.