If the purpose of this ‘exercise’ is to round up all the illegal aliens and politely (or not so politely) escort them all back to the south side of the Rio Grande . . . I’m all in!
If not, I see no reason for it.
OTOH, if it was being conducted by a government that I had full faith in - it is probably a good idea . . . at some point there could be an uprising that needs to be quelled - but hardly against Bible believing Christians and Tea Party conservatives.
I think Dearborn, MI would be a better place to have this "exercise".