News bites: Red state cars

Your morning transportation speed-read:

American automobile brands are more popular in Republican-leaning states than those that favor Democrats, according to a study.

A pair of women were arrested at New York's John F. Kennedy International Airport for allegedly trying to smuggle drugs in diapers they were wearing.

American Airlines and U.S. Airways are reportedly closing in on a long-anticipated merger.

Spirit Airlines is invoking a controversy involving Major League Baseball player Alex Rodriguez allegedly using performance-enhancing drugs in a new ad.