Is your weed killer carcinogenic?

By Kate Kelland LONDON (Reuters) - The latest dispute to blow up around the International Agency for Research on Cancer (IARC) concerns glyphosate, an ingredient in one of the world's most widely-used weed killers, Roundup, made by Monsanto . In March 2015, an IARC monograph concluded that glyphosate is "probably carcinogenic." Yet seven months later the European Food Safety Authority (EFSA), an independent agency funded by the EU, published a different assessment, saying glyphosate is "unlikely