Fear mongering and Food Crisis

So I've been up since 3AM. Just couldn't get back to sleep. My mind is spinning with a thousand thoughts. As the mother of 4 I'm very concerned about the economic instability. It seems as though there might be some slight relief but honestly, I'm just not sure. When I look at my children I worry about how quickly the world can change.
American's live life teetering on the edge of a cliff that we cannot even see. Those of you in the preparedness community know this, my family and friends don't for the most part. So here it is - in the event of a catastrophic event that shut down the food delivery system it would be less than 3 DAYS before store shelves were emptied. 3 days... think about that for a minute. If you think you could turn to_____ (fill in the blank: gov't, churches, neighbors, family, etc.) guess again because that's where everyone else is headed.
What ticks me off about all this is that there seems to be very little sane middle ground in this discussion. On the one hand you have the average American who is completely unaware and doesn't WANT to know. As long as they can have their Big Mac's and Coke they figure anyone who thinks about this stuff is crazy. On the other hand you have people trying to exploit their knowledge for their own gain, or theorizing about vast government conspiracies. Whether true or not - that kind of fear mongering muddies the waters and scares off people who just write off preparedness people as crazy.
I've begun connecting with people who seem to be in the middle of the two extremes. (Though I know people on both extremes as well). PRUDENCE is my word of the day. Use prudence in all matters, research from all angles, don't take ANYTHING at face value.
What are some simple, not extreme, but extremely prudent things you can do?

1. Grow your own... something - I have the black thumb of death but even I can't kill lettuce or rhubarb. I live in the Northeast where summers are short and gardening can be tricky. I'll still at least try to grow something, even if it's just a plant pot on the window sill with some chives in it.
2. Buy an extra... something - tube of toothpaste, can of soup, bag of sugar. Don't worry about having some big elaborate plan. Don't think you've got to have a 'years supply' - just worry about an extra day or two.
3. Assess your skills and knowledge - As I've said before, I'm not Fannie Farmer and I'm not Martha but I have some basic gardening and handcraft skills. I'm more of an armchair quarterback but even I have some skills. I can sew, bake bread, etc. My husband is a handy man, carpenter, etc. Everyone has something their good at.
4. Question... something -particularly something you've always taken for granted, even my statements here. Don't believe what I'm saying, go read it for yourself and make your own decisions.
5. Turn off the TV - or at least do something else while it's on. You won't find truth on the tube. Nor will you easily find it on the net. You don't have to have a degree or proof of anything to write or report about it - just because it's posted, printed, published, or broadcast doesn't mean it's true.
6. Don't be the deer in headlights standing there waiting for catastrophe to reach you. Get your stupid butt out of the way!