Time to build a wall. (well, it's BEEN time to build a wall).
Once the wall is up, and the next survey (2010) rolls around, we document every illegal, and require they get their citizenship within the next 3 or so years, or else be deported.
Just my simple solution.
One too many steps. Only 1) and 3) are needed. Find'em---then ship'em out.
Just a word about the wall idea. It would be extremely costly, might stop the flow of illegal immigrants, but cannot offer our nation security. Our two most vulnerable points for a nuclear or biological attack by terrorists are adjacent to Tijuana and Juarez, Mexico. San Diego, California and El Paso, Texas or not only prime targets for terrorists to strike our civilian population, but the major military installation nearby.
We need to start thinking way beyond a wall, or a massive military presence along the border. The solution must secure our nation, end the mass migration, and be lasting.