COLUMNISTS 
Early next week George W. Bush will be greeting Recep Tayyip Erdogan, Turkey’s prime minister, at the White House. A day or so later France’s Nicolas Sarkozy will pitch up in Washington. By the weekend, Angela Merkel, Germany’s chancellor, will be sharing a hamburger with the US president at his ranch in Crawford, Texas. Lame-duck president he may be but Mr Bush does not lack for foreign visitors.
