Negative breathless prose regarding food production is neither very useful or instructive. That modern food production, processing and distribution is energy intensive is hardly a news flash. Unattributed claims, highly selective examples describing aspects of the process in support of an assumptive point of view are counter productive and provide nothing by way of solutions.
It'd be far more beneficial to use newsletter space to provide names, addresses and phone numbers of local food producers, the hours and locations of local produce outlets and producer markets, and tips for acquiring, preparing, processing, and storing those goods.
Thousands of people go to work each day hoping to make a difference. We need all the help we can muster. Having had the opportunity to work first hand with subsistence farming, the notion of returning to some "good old days" of food production pre 1940 is absurd.
Should we work to reduce the use of energy in the food chain? Absolutely.
Is buying locally produced food a good way to reduce energy use in the food chain? You bet.
Is buying a bottle of ketchup a sin? Not so much.
If you've ever had to depend entirely on the food you grow yourself, you know it's not an energy-free activity. It takes all of your time and likely all the time of your entire family and it goes on from the time you get up until the time you fall asleep. Then you get up the next day and the next day and the next day and keep working to produce enough to eat.
When someone decides to attack modern agriculture, I wish they'd find a way that wouldn't belittle those of us who have spent our entire lives trying to find solutions to the pressing needs of the world's population.