For starters, you would arm everyone.
Now that's what I call REAL homeland security!
It has the added advantage of being easy to do, and in line with Constitutional principles. Just repeal all the laws forbidding ownership and carry of firearms. Period. Doesn't cost the taxpayers a dime as even the cost of printing out the bill could be made up in the revenues saved by shutting down that portion of the BATF.
You just drop the "F". ;-)