In 2011 a tornado tore through Joplin, Missouri, and a few competition barbecue cooks towed their giant smokers over, figuring on four days and 5,000 meals. More cooks kept arriving, and they stayed nearly two weeks and served 120,000 meals to families and first responders. That crew became Operation BBQ Relief, now past 12 million meals, and the smokers still roll out to wrecked towns.