Considering how unreliable GPS altitude information is [1], I would like to not be on board when they do that.. For more information regarding what happens if

Considering how unreliable GPS altitude information is [1], I would like to not be on board when they do that.. For more information regarding what happens if someone alters the altitude of a plane, see [2]. [1] http://www.gpsinformation.net/main/altitude.htm http://www.gpsinformation.net/main/altitude.htm [2] http://www.imdb.com/title/tt0099423/ http://www.imdb.com/title/tt0099423/