If we accept all the Star Wars films as the same canon, then a lot that happens in the original films has to be reinterpreted in the light of the prequels. As we now know, the rebel Alliance was founded by Yoda, Obi-Wan Kenobi and Bail Organa. What can readily be deduced is that their first recruit, who soon became their top field agent, was R2-D2. [...] Much of Obi-Wan's behaviour in this film, and Yoda's in the next, can best be understood if they are frankly scared to death of what Luke might become.

This is the best Star Wars nerding I've read since The Endor Holocaust...