Well, it's there now, and I didn't realize the House Republicans were going to reconsider 4437? Obviously if they ever meet in conference, it will not survive.
# 2. Illegals in this country can't go "further " underground , since they are not underground at all right now as we speak. Their rabid demonstrations in April showed how much confidence they have in arrogantly and openly flouting our laws.
You may want to think about what assimilation is. The best part of our military ground forces cannot find either Mullah Omar or UBL. The reason is because they have the support of the local populace and are well assimilated. That is one reason it will be difficult if not impossible to find any but the most vulnerable, those with families, essentially the low hanging fruit.