yesterday where she was charged with grand theft and identity theft. she s been arrested on two similar cases in miami and since paid those doctors back. but she won t admit wrong doing in this ft. lauderdale case where she s accused of repeating that scam. southwest airlines is defending the unaccompanied minors policy after three florida kids brought plane tickets to nashville without their parents knowing. the three are 15, 13, and 11 years old. nbc s mark potter has the details. reporter: on a summer day in jacksonville, florida, 13-year-old bobby nolen was looking for something to do when 15-year-old bridget brown sent him a text message. i asked him today if he wanted to go to nashville, tennessee. reporter: they decided to visit the theme park using $700 bridget saved from babysitting. and without telling their parents, bridget, her 11-year-old brother cody, and bobby went to the airport and bought tickets to nashville. he told us how much it would be and we paid him a