Michael Pollan is always arguing (plausibly) that the centralization of our food supply makes it easier for pathogens like salmonella and E. coli to spread far and wide. The news over the last eight days that a blight being spread by tomato plants bought as Wal Mart shows that the same thing can happen not just to the consumers but to the food supply itself.
As far as I can tell, my friend and former colleague Bill Cary broke the story a week ago, here
. The Times website
has it today.