There are members here who assert that the United States is resilient. Lest we forget, the more complex a system is, the more susceptible it is to failure. We have a just in time delivery system. We have an aging power grid system it is vulnerable in so many ways. We have a banking system that can be hacked. Our financial markets are also subject to hacking. Now, throw in all those whirl-stahr videos of people going ape shit at Waffle House, McDs, Chuck e Cheese and malls over stupid non-essential things and reconsider, are we really all that resilient? People here shoot each other because of clothing color. People shot each other for cutting them off on "their" road. People riot because one side is intolerant of any opposing view point. As others said, we are just three meals away from social unrest (riots).
Nope, we are certainly less resilient than other nations. Russians and Chinese are used to hardship. Americans by contrast are soft. We've a nation where 50 million (or about 1 in seven) are free sh*t army dependent on government handouts to live. In other nation's they would have starved to death.
The simplier the society, the more resilient a society is. You can't bomb a stone age people back into the stone age. They woudln't know the difference but if you shut off the power/cell phone to a valley girl, well, that's different.