"The greatest single threat to human health since the discovery of AIDS". In particular, the release of a "transgenic nematode" (genetically altered and enhanced nematode) ,and subsequent trillions of releases since 1996 into the environment, via a loophole in United States law. The Law See: http://www.isb.vt.edu/epasrc/enacted/epa.gui.txt Evidence of its use See: http://www.aphis.usda.gov/brs/arthropod/permits/9605201r/9605201r.html