A video well worth watching. Unfortunately the closing remark from the talking head, stating the long-term effects are unknown is a complete sham as we know the short term effects are deadly! Glyphosate even in concentrations as low as 5 parts per billion (ppb) causes health issues in rats so 1,000 ppb? It is an outrageous lie to calim that level is safe.
http://www.ktvu.com/news/study-weed-killer-found-in-oat-cereal-and-granola-bars