Uh, it's being reported that it was grown in Texas and New Mexico.
Nothing about being connected as possible sources according to this MSM report. The Texas/New Mexico cases were connected by similarities of the problem.
The article goes on to say
Among safe tomatoes are "tomatoes grown in Arkansas, California, Georgia, Hawaii, North and South Carolina, Tennessee, Texas and Puerto Rico. The FDA also cleared tomatoes from Belgium, Canada, Dominican Republic, Guatemala, Israel and Netherlands."
Florida and Mexico are both omitted from that list. The article did not explain why except to say that Florida has had problems in the past and there was no mention of Mexico in the article at all. I say that proves that the source is known to be Mexico -- that of course is IMHO.