posing a threat. the passengers are not suspected of a crime. they are not under investigation and not on any terror watch list. investigators are looking into whether the program follows privacy laws and whether it is effective. and students in parkland, florida, go back to school today, but things are hardly back to normal. six months after one of the deadliest school shootings in u.s. history left 17 people dead, marjory stoneman douglas high now features newly installed 20-foot fences. broward county investing $26 million in security at all of its schools, including double doors, cameras, and security personnel. >> a different kind of back-to-school shopping, right? two sisters who worked in a school cafeteria in connecticut apparently had an appetite for cash, and we're not talking small potatoes. the pair are accused of stealing nearly $500,000 in a scam dating back to 2013, according to authorities. news 12 reports joanne pasquarelli and wilson were charged with larceny and defrauding a public community. authorities say the missing cash