Men and women of ill intent won't let a few borders get in their way.

There are three obvious ways to go:

1. Eject everyone who is not in the States legally,

2. Throw up your hand and open the borders, (probably not a high probability)

or 3. Throw out all the criminal illegals and hang onto all the ones who
have dealt honestly after their illegal entry.

When they have solved that, world peace and cold fusion will be solved by the following Tuesday.

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Calm, quiet, smooth, devastating