I'd be a lot more concerned if we didn't have plans in place for even the most unlikely of scenarios. The time for planning is before the SHTF, not once it has.
You're right. I'm sure somewhere there are plans for all kinds of oddball scenarios. What if the Canadians march on Fargo? What if the Mexican's head north? ... Oh, wait, that last one is happening. hussein obama's plan for that is apparently to try to turn them into votes for his Democratic fronted socialist/fascist regime.