[USS Alaska]

50 cal, water cooled, auto controlled, every 100 yards, overlapping fields of fire, programmed to fire until no movement, nor body heat.

End of invasion. Illegal immigration no longer a problem at border, new laws required at points of entry.

While the 50 cal solution would work at points of entry, too much collateral damage to be acceptable to squishes. Maybe 30 cal semis?

Too much?

[jazusamo]

That definitely would be considered an overkill by Chuckie and Nan. :^)