If you would like to see Professor Vierling’s first talk filmed by Amherst Media:
https://archive.org/details/LWVGMOPresentation
Professor Vierling’s Power Point from 4/15/14 talk:
Power Pt GMO Talk1-April15 2014
Grow Food Amherst Blog Review of first talk:
http://www.growfoodamherst.org/gmo/