There is no evidence that Vladimir Putin is unwell and suffering from cancer, CIA director William Burns has said, saying the 70-year-old looked “too healthy”. The Russian president made a rare foreign trip this week, visiting Iran to meet the country’s supreme leader Ali Khamenei as well as Turkish counterpart Recep Tayyip Erdoğan - who gave Mr Putin an uncomfortable wait in front of cameras. Mr Putin’s health has been the subject of speculation after a video conference showed him coughing several times at the event. Ukraine’s top spy chief also claimed last month Mr Putin was “gravely ill,” and may only have months to live.