I think that George Bush is facing reality when he endorses a guest worker program.
Some conservatives disagree.
At Polipundit Jayson has some interesting statistics citing real improvement in terms of immigration and security; while Polipundit feels quite differently, fearing a backlash against Republicans if more stringent measures are not taken.
I am not sure what these measures are supposed to entail however.
I grew up in the southwest and once the subsidized water came the people came and the towns and cities grew and the overall border crossings increased.
But it works both ways. I know a young lady who just went to Mexico for a medical procedure performed by an American doctor in a clinic just across the border.
I think it is very late to expect huge changes in this issue quickly and while I believe that the threat of terrorism is real and the borders need to be more secure, I also think there is a little something else going on here. And it is not pretty.