History's deadliest air raid happened in Tokyo during World War II and you've probably never heard of it

Tokyo (CNN)Everywhere she turned, 8-year-old Haruyo Nihei saw flames.

Bombs dropped by the Americans had created tornadoes of fire so intense that they were sucking mattresses from homes and hurling them down the street along with furniture -- and people.
    "The flames consumed them, turning them into balls of fire," says Nihei, now 83.
    Nihei had been asleep when