Biocides, GMO, do you need them?

The very interesting question about the present debate on GMO, pesticides, glyphosate and so on is the need of this stuff for your daily food supply.
http://dysnutrition.blogspot.fr/2012/09/disturbing-news-about-gmo-and-roundup.html
Sorry but I have no serious data which prove that I need them either nutritionally or economically.
The reason why I skip them until I will need them.


http://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CDgQFjAC&url=http%3A%2F%2Fwww.inra.fr%2Fciag%2Fcontent%2Fdownload%2F4621%2F35600%2Fversion%2F1%2Ffile%2FVol20-4-Deytieux.pdf&ei=vm5hUMCECpCChQeO5oCADg&usg=AFQjCNHrKYokgtdwNP9hRzQAvp-FLVviHg&sig2=90UkSgrDI0g1AX20KxzxJw

http://www.sciencedirect.com/science/article/pii/S1161030111000967