Casey links Some of these can be found through google now. These aren't the comments I was referring to, but here is some things:
Argentina Becomes Less Mining Friendly https://www.caseyresearch.com/cdd/argentina-becomes-less-mining-friendly
also, a quote from Casey from a different article. Yes he lives in Argentina, but:
“I spend a lot of time living outside of the US,” he says, “so I have to ask myself where I would prefer to live. As a pure investor, I’d much rather be in Colombia or Chile. Argentina has had an unbroken track record of economic disaster since the 1940s. But the reason I like Argentina is for the culture, the sophistication, the climate, the wide-open spaces – for those reasons, not as an investor.”