Starvation in the US? Look, you’re really being silly here, just stop it okay?
Wow. You really want to say that there can't be starvation in the US?
There's [IIRC] less than 20 rail 'choke points' in the US, where all rail shipping goes through; if all of them were hit at once [terrorism] do you know what the impact on shipping would be?
There's a shortage of pilots, thousands short, right now and in the coming few years it's going to be much more severe as large portions hit mandatory retirement age. What is that going to do to our shipping?
The ULSD [Ultra Low Sulfur Diesel] has already caused the price of Diesel to rocket (historically it was always cheaper than gasoline), and caused many trucking companies to go out of business; do you know what that's already done to our shipping? (And what will happen if Diesel gets even more expensive?)
Those are just the shipping sides of things; the government's intrusion into their affairs has caused a lot of trouble for them and a few more regulations may be all that's needed to break the camel's back.
If shipping goes belly up, there will be starvation. Period.