My second call was about lunch meat. I'm very adept at reading ingredient lists, but obviously that is just not enough. Cross-contamination is a real danger and I called Sara Lee about their Hillshire Farms products. The representative assured me that they do not hide any allergens in words like "natural ingredients". Those words may present on the ingredients list, but no allergens are included in the proprietary blend without full disclosure. They cannot certify that "caramel coloring" doesn't contain gluten, but it is their policy that if one of their products contains any sort of allergen at all it is run on a different day than the gluten free products and after the run, the machines are taken apart and washed extremely carefully.
Sara Lee does label their products if there is any danger of cross-contamination. Interestingly, and as I'd already guessed because of the "Utz fiasco", there is no governmental mandate about a cross-contamination product warning.
I'll keep updating as I call on different products.