The NFL season kicks off Thursday night, with reigning champs the Baltimore Ravens taking on the Denver Broncos. Pro football has some new rules and the league just settled a multi-million dollar class action lawsuit with players.
It seems most decent-sized cities in the U.S. have a "sister city" — a companion community in a foreign country. Some even have more than one. But how these cities end up selecting each other is a lot like the dating scene.