If you have the chance — and the cash — to experience an ultra-exclusive meal prepared by celebrity London chef Salt Bae, there’s a good chance you’ll end up on his Instagram feed. That might sound cool. But not if you’re a high-level government official from Vietnam, which is in the midst of an anti-corruption campaign. One such official is facing scrutiny after appearing in a Salt Bae video eating a gold-encrusted steak. The World’s Southeast Asia correspondent Patrick Winn has the story.