It's not every day that a select group of flight attendants receives an opportunity to travel to France and experience wine tastings with some of the world's top vintners such as Remi Krug of the Krug Champagne House and Jamie Sichel of Maison Sichel. In fact, it had never happened until Delta Air Lines (NYSE: DAL - news) introduced an innovative employee education program -- the Vinum Wine Academy.