Alan wrote:It would be 'may', which, strictly speaking, ought to have become 'might' in the reported version. Sometimes, however, tense concord rules are overlooked if there is felt to be a risk of ambiguity (as here, where 'might' could possibly have been misinterpreted as a conditional form, as in He might be nicer to you if you if you were more polite to him.).
You mean it is grammatically right that "Dr. Armstrong said the illegal trade in Russia might
be so great that there might not be any legal quotas issued in the foreseeable future if the total catch was counted accurately." ( Or Dr. Armstrong said "the illegal trade in Russia may
be so great that there may
not be any legal quotas issued in the foreseeable future if the total catch is counted accurately.")
"might" is replaced with "may" because it makes readers wrongly consider the sentence "the illegal trade in Russia might be so great..." as a conditional form. Right?
p.s) Is ".... to you if you if you were more.." your mistake isn't it?