We have recently been discussing airline safety on this blog and today the Globe and Mail has a feature article on exactly this subject.  It is called "Too Tired for Take Off."  You can find it at this address.

http://www.theglobeandmail.com/news/national/too-tired-for-takeoff/article1370571/

The article points out that fatigue is a huge problem for pilots and describes many incidents in Canada when the exhausion of pilots has been a major cause in deaths.