Robert Langdon (Tom Hanks) and Sienna Brooks (Felicity Jones) try to evade a drone in Boboli Gardens in Inferno. Jonathan Prime/Sony PIctures hide caption toggle caption Jonathan Prime/Sony PIctures Goats and Soda Burning 'Inferno' Question: How Fast Can A Deadly Virus Spread? October 31, 2016 Could a virus go around the world in a week? How scary are man-made viruses? Does WHO have a clandestine army? We consider questions raised by the movie.