Point #1: 15 of the 19 terrorist lived in Palm Beach County.
Point #2: A number of them inquired about crop-dusters and even rented regular planes on four different dates in August (August 17, 18, 20 and 22).
Point #3: If they inquired about crop-dusters, it is logical to conclude that they had the "stuff". After all, why inquire.
Point #4: If they were going to "check-out" on September 11, 2001 and they have the stuff, and are evil and diabolical, they probably would use it even if the distribuiton method is of low "effectiveness".
Point #5: The mathematical odds of two people getting anthrax "naturally" from the same area that the terrorist lived, like the Soviet style press in the South Florida area reported over the weekend, is astronamical (18 cases in 100 years, none in 25 years, 280,000,000 people in the country, millions of square miles af U.S. area). You would have a better case of winning the lottery in every state lottery on the same weekend simulataneously.
Point #6: The South Florida area, especially Boca Raton, has the second highest per capita Jewish population in the country. The first, New York City.
Connect the dots, Folks. God Bless and be safe.