But the rather widespread public rejection, fueled by advocacy organizations like Greenpeace, has had a huge effect, promoting the development of ever more complex regulatory requirements.  I published an Op-Ed piece in the New York Times last summer protesting the US Environmental Protection Agency�s expansion of its regulatory requirements without scientific justification. I enlisted more than 65 members of the US National Academy of Sciences, including Nobel Prize laureate Jim Watson, to sign a letter of protest to the EPA.  We are continuing to work with EPA and to make Congress aware of the excessive regulatory burden on GM technology.  Why?