I enjoy these books, but I sometimes get annoyed at minor problems in them. There's a lot of talk about how likely the plane is to crash if Jon is on board because he'll mess up the electronics. OK, planes have lots of safety features. He might kill the engines and the radio, but the pilots can still fly the plane and probably even land it decently if they are skilled pilots. Yep, they may have to do an emergency landing, but knowing they have Jon on board, they should be prepared for that.