AN ELDERLY MAN places a newspaper on an ATM terminal, douses it in spirit, and sets it alight while filming it all on his smartphone. The pensioner then repeats the trick twice more on December 21st—once unsuccessfully—before police nab him in Kolpino, near St Petersburg. Within days, Alexander Nikiforov is in court and charged with terrorism. But his case, echoing dozens of similar events targeting banks, post offices and police cars the same week, has raised more questions than it has answered. Mr Nikiforov claims he was acting not from conviction, but under the instructions of unidentified telephone scammers.