Here, very briefly, is what the “smoking gun” (Swanson et al, http://www.organic-systems.org/journal/92/JOS_Volume-9_Number-2_Nov_2014-Swanson-et-al.pdf) contains:
Despite spending more on medical care than any other nation, in 2012 (the most recent year for which there are statistics) the US is only #36 in life expectancy, behind Costa Rica, Slovenia and Lebanon. One reason is the increase in a number of chronic diseases, including diabetes and several varieties of cancer. Swanson et al. show that that the upcurve in these conditions exactly matches the increase in the percentage of GE soy and corn crops and the quantity of herbicides containing glyphosate applied. As they point out, correlation is not causation, but you can’t show causation unless you can first show correlation, and by a standard measure, Pearson’s correlation coefficient, the correspondence between increased GMO/glyphosate use and more than a dozen diseases is higher than 0.9.
To the best of my knowledge, this is the first and only epidemiological study that shows the correlation between GMO/glyphosate and America’s deteriorating health, and it should be a wake-up call to every US citizen.