Always remember, if you have no guns, you are stockpiling food and water for someone else.
Ammunition is also good barter fodder.
And when things get really really bad, your coworkers are edible. (/sarc)
And I'm saying there can be.
For cryin out loud get a freakin grip!
I have one; you apparently don't. (Have you been involved in anti-terrorism operations, at any level? I have.)
We throw food out by the ton in this nation everyday!
And prior to 2008 the US had never had its credit rating downgraded; does that mean that it couldn't be? Obviously not.
The things currently plentiful are by no means guaranteed to stay plentiful.
Anyone with a backyard, like I've got can grow food and raise chickens. People in my neighborhood have been doing that for years.
Can you grow enough to fully feed your family? Moreover, do you have the ability to defend what you have from those who would wish to take it? In a state of starvation the police will not be on your side: they will be on their own side. (Furthermore, how many people don't have back yards?)
I'm not saying that we will see mass starvation in the US, but it is not an impossibility.