Roll over Labrador, French bulldog now top US dog

For the first time in three decades, the U.S has a new top dog breed. According to the American Kennel Club, the French bulldog, the sturdy, push-faced, big-eared and distinctively droll pooch became the nation's top purebred dog last year. (Production by Luke Sheridan, Video by Jen Peltz, Joe Frederick) (March 15)