give you some ideas that get at the immigration issue and the potential and the need for reform in a way that is a little bit less traditional in that it's almost clinicali'm going to try to present some economic arguments. i'm going to present some kind of structural social arguments and i'm going to worry you a little because to have the economist law professor opening with an analogy to a science fiction film. don't worry, it works out ok. some may have not seen this film. it's one of my favorites. it starred uma thurman and jude law. it's a near future in which individuals are gentically engineered and it's the story of two brothers. one is enneared to be terrific and great and wonderful and one is not. it's a story about their efforts to succeed. there is one part of the story that resonates so well and is a strong metaphor for immigration and it's the following -- they would have a contest as adolescents and as adults they would swim out in the ocean, and the first one to turn back would lose. it was a simple contest. and in theory, in every possible way in theory, the engineered brother should have won. he was stronger, bigger, better, more fit.