Monsanto's Roundup Triggers Over 40 Plant Diseases and Endangers Human and Animal Health

Glyphosate, the active ingredient in Roundup pesticides, have been linked to nutrient deficiencies in humans and farm animals that result in disease. Alzheimer's, for example, is linked to reduced copper and magnesium in diets and has sky-rocketed 9000% since 1990. GM Alfalfa has been approved now by the USDA and will threaten the entire organic farming industry through irreversible contamination. This article is heavy reading but contains a great deal of valuable information. 
http://www.responsibletechnology.org/blog/664