DD,
The formulations of the pesticides under discussion here are freely available for anyone interested to look. And there are literally thousands of eager young Organic Chemistry students every year who would love nothing better than to come up with definitive proof that any one of those pesticides is the evil spawn of Satan that the greenies like to claim they are. That would be their ticket to fame, fortune, and possibly a Nobel Laureate.
So far, none of these eager young students have been able to discern anything noteworthy where Roundup is concerned.
