In San Antonio, we eat flour tortillas, as previously noted.  This is because when refined (or de-germed) flour was invented during the industrial revolution, it flooded the market as a cheap grain with a long– too long– shelf life.  The original Mexican tortilla is a corn cake.  I live about a mile from the oldest gristmill in Texas (Mission San Jose), which predates white flour by about 150 years. I also live near the C. H. Guenther Mill, where workers have been on strike since last spring.  But clearly this is the type of strike that has few plays in the playbook– pretty depressing considering their union reps make almost six figures and yet dont seem to know what a fight-back looks like even if it came served…