In light of the discussion that farm workers and some lab workers may be at risk for infection with possible insertion of Agrobacterium tumefaciens into their bodies (causing perhaps cancer) it was quite disheartening for me to come across this PDF file concerning a young student's experiment with Agrobacterium tumefaciens. It is bad enough that adult workers may be exposed to this, but to allow this to be sold OTC and then to allow a younger child to be exposed to it is beyond understanding . How can this be happening? Let's hope that all concerned in this little "safe" experiment were also taking beta-carotene in sufficient doses:
www.usc.edu/CSSF/History/2002/Projects/J1429.pdf