Details

Kent Hovind incriminates his son, Eric Hovind in the interstate selling of the drug amygdalin.
http://creationtoday.org/product/b17-package-2/

Interstate selling of amygdalin is illegal at a federal level:
http://www.cancertreatmentwatch.org/q/laetrile/commissioner.pdf

Even though selling of amygdalin is legal in about 1/3rd of states, the federal ban on its interstate sale (due to the fact that theres no evidence it actually works) means that you can only sell amygdalin made in your own state, in your own state. Eric Hovinds site will quite happily ship amygdalin to any state in the US.

http://www.cochrane.org/CD005476/GYNAECA_laetrile-treatment-for-cancer
‘The claims that laetrile or amygdalin have beneficial effects for cancer patients are not currently supported by sound clinical data. There is a considerable risk of serious adverse effects from cyanide poisoning after laetrile or amygdalin, especially after oral ingestion. The risk–benefit balance of laetrile or amygdalin as a treatment for cancer is therefore unambiguously negative.’