Ian McEwan has a new book. It’s a hit. But he wonders if he’ll be allowed into the US to promote it. “McEwan’s diplomatic woes began a year ago when U.S. officials turned him away from entering the country in error. But that error has remained on the books to haunt him still. ‘Once you have been refused entry to the States, you go into the computer and you are regarded with suspicion. It is a matter of enormous irritation. I only got in this time by the skin of my teeth. This could well be the very last time I ever get in’.”