That I know of, there have been 3 recalls of all-purpose flour in recent months: by King Arthur, Aldi's, and General Mills (Gold Medal). All 3 cite e-coli contamination. The KA & Aldi's notices both say the source is ADM Milling (Buffalo NY). (General Mills' notice doesn't say.)
Would I be reading too much into this coincidence to infer that everybody is selling the same exact stuff, and I might as well be buying Aldi's, instead of paying a premium for KA?