BRITAIN says it would like to see proof that Sheikha Latifa, one of the ruler of Dubai's daughters, is still alive after the BBC published a "deeply troubling" video saying she was being held against her will in a barricaded villa. Asked if he would support seeing some kind of proof from the United Arab Emirates that Sheikha Latifa was alive, British Foreign Secretary Dominic Raab told Sky News television: "Given what we've just seen, I think people would just at a human level want to see that she's alive and well, of course, I think that's a natural instinct…