‘Iron Chef’ Taping Leads to Earth-Shattering RevelationWe’ve often wondered what the hell actually goes on behind the scenes at Iron Chef America. When an invitation to yesterday’s taping landed in the Grub Street mailbox, we were quick to accept it. On the set, the air was filled with dry-ice mist and dozens of sharply focused spotlights, giving the aura of an incipient Metallica show.