What a pleasure it was to travel to Nashville, Tennessee with the First Lady as she addressed the 49th Quadrennial Session of the African Methodist Episcopal (AME) Church's General Conference.

WHITEHOUSE: Our Top Stories

Still, many of his industry's woes have stemmed from other things the blossoming of amusement parks, the advent of cheap air travel, and the arrival of Interstate 65, which sped drivers from Nashville to Louisville in air-conditioned cars, rather than encouraging them to stop for a breather at a cave.

ECONOMIST: Kentucky��s caves

Southwest is also set to increase service on heavy business-travel routes to and from airports such as Chicago Midway, Denver, Los Angeles and Nashville.

ECONOMIST: Business travel