The Federal Aviation Administration has launched an investigation after two planes from major commercial airlines appeared to nearly collide mid-air in an unnerving dash camera video taken by police in Syracuse, New York, this week. Although experts say the flights were not actually on a collision course, based on preliminary evidence, they were for a time flying in very close proximity — just 725 feet apart at their nearest point. The incident happened at around 11:50 a.m. EDT on Monday,...