Appreciate that you're in the US, but since so much of the food industry is global you may still get some benefit from this - the EU maintains a public database of incidents called the Rapid Alert System for Food and Feed (https://ec.europa.eu...rasff/portal_en). It's broader than "just" food defence, but can be useful nonetheless.
If you're a member of any trade associations or industry bodies then it's worth contacting them as well - many compile data on incidents of particular relevance to their sector, and some also conduct their own risk assessment and analytical monitoring programs.