In order to do, he'd have to:
(1) order the IRS/SS Admin to immediately make their database available for SSN validity checking;
(2) send a joint letter from the IRS/Justice/Labor Depts to millions of small businesses warning them of ramped up audits & prosecution for failure to use #1; and
(3)and most importantly, start issuing no-bid contracts to Haliburton (kidding), et al to begin immediate construction of a wall.
Bush has proved himself capable of making overnight decisions with regards to the W0T - he took much more draconian measures with Iraq. Anything less in response to the southern invasion tells us everything we need to know about where he stands on the issue of illegal aliens.
How's that class-action lawsuit comin'?