He makes clear that a large number of compounds were made , and many of the less potent derivatives were reported in the open literature as new organophosphate insecticides .
The secret chemical weapons program could be disguised as legitimate pesticide research .
He makes clear that a large number of compounds were made , and many of the less potent derivatives were reported in the open literature as new organophosphate insecticides , so that the secret chemical weapons program could be disguised as legitimate pesticide research .