"Fred Thompson's immigration plan seems to include a contradiction. He promises to bolster border security, yet his plan relies on "attrition through enforcement", or the self-deportation of illegals going back to Mexico. Illegals can not exit through a secure border, nor is it likely that they will attempt to if they have no way to prove they are leaving instead of entering (and would be arrested). Is this plan realistic? If no, which is more important, border security or reduction of the illegal population and business enforcement?" -- Mike_M Answer: First of all, it might be a "contradiction" if he...