A former senior Russian security officer has given rare insights into the paranoid lifestyle of Vladimir Putin, confirming details of a secret train network, identical offices in different cities, a strict personal quarantine and escalating security protocols. Gleb Karakulov, who served as a captain in the Federal Protection Service (FSO) and defected last year, said the measures were designed to mask the whereabouts of the Russian president, whom he described as ‘pathologically afraid for his life’