Machiavellian spy firm or NHS saviour? The US giant love-bombing Britain

London’s Soho Square seems oblivious to the thin, wild-haired old man shouting into a loudhailer as his bearded friend in baggy shorts performs a jig beside him. On most Thursdays at 4pm, this is where you will find Piers Corbyn – the 79-year-old elder brother of Jeremy Corbyn, the former Labour leader – and his slightly younger companion, “Bongo Nick”, the Bez to Corbyn’s Shaun Ryder.