From roadside stands to four-star restaurants, the iconic Mexican taco has become an American favorite with an incredible past and brilliant future. Invented more than 3,000 years ago, you might say tacos are the original comfort food-simple and satisfying, a holy trinity of tortilla, meat, and salsa. Jeffrey Saad takes us on an incredible journey to find the finest tacos in the country. Fish, beef, chicken, pork...and bugs?!?