based on acars because they say this. acars does not translate anything having to do with gps. acars only gives specific information and that's information about the health of the plane. these pilots that i spoke to who are very familiar with the 777 say they don't know any way in which that particular system could let anyone know whether someone preprogrammed that turn into the original flight path or the itinerary, so to speak. whether they are basing it on acars, whether they are basing it on data from radar, that's unclear. different people have different sources. but here's why any of this really matters. because you may be watching at home and you may say, okay, this is an incremental change here but it matters because if somebody did indeed preprogram something or that flight plan into the flight management system a long time ago, then