Hundreds of people have lined the streets of Tokyo for the visit of Donald Trump. The American president is in Japan at the start of a marathon 10-day Asian tour. Trump began the trip with a warning to North Korea over its nuclear programme. But his first day ended with Spiny lobsters and beef steaks at a teppanyaki restaurant where he was full of praise for his hosts. Earlier, Trump and Japan’s Prime Minister Shinzo Abe played a round of golf with Japan’s top golfer, Hideki Matsuyama.