Just skimmed the first part of the linked BMJ paper, which turns out to be from 2003. It looks like all of the study participants were from Nebraska, where one would think there would be a pretty high level of ambient pesticides. This is actually good news for pesticide non-applicators.
From the OP:
What the scientists do know is that the people in these studies who were exposed to glyphosate experienced a higher incidence of non-Hodgkin lymphoma than those not exposed to the chemical. Other studies found that glyphosate led to DNA and chromosomal damage in human and animal cells in vitro, which can lead to cancer.
