"You are 30 times more likely to poison yourself with organic produce because it allows Bt [the bacterium Bacillus thuringiensis] to spread directly. [...] Wh

"You are 30 times more likely to poison yourself with organic produce because it allows Bt [the bacterium Bacillus thuringiensis] to spread directly. [...] When ingested, the bacterium produces endotoxins which attack the walls of the insects' guts. In mammals, they can cause death from septic shock." We have to make the difference between Bt bacteria, and Bt toxin. Bt toxin is a protein produced by the Bt bacteria. As far as I understand, the professor here is talking about spraying the crop with live Bt bacteria, and apparently the bacteria can produce other toxins than just Bt proteins.