Wrong choice of word...what I meant was formalizing in the sense of regularizing those who come here to work in jobs that Americans will not do (guest workers). That way you keep track of them and the costs associated with the revolving door are minimized.
There is no such a thing as a job an American will not do, only salaries employers will not pay.
Even so, I might accept this if the reference is limited to agricultural jobs, which constitute a very small fraction of the work these people are sneaking in to do.
The immigration issue continues to make me question President Bush's credibility. I fail to see how we can prevent another 911 by having open borders.