The idea I have had is to create an agency that would be charged with BP-like functions, but with more manpower and capabilities. It would take the BP and turn them into a effectively a military-like organization with 30-40K of them on each border, a small group of 1,000-3,000 federal agents for a corps called something like "the Border and Immigration Police" and an information systems branch that would keep biometrics data on illegals, resident aliens and citizens. That way, a citizen could do a finger print and retina scan and enter unmolested. The name I proposed to some seemed a little ominous: the Internal Security Agency. All three branches plaed under the same agency of course.
Whatever works! We live in times that demand imagination and creativity. The alternative is too horrific to contemplate, given the nature of the threat(s).
We live in a dangerous world.