That's my point is that it's so concentrated it takes very little to completely disrupt the entire industry. The question to me is are the increased costs of di

That's my point is that it's so concentrated it takes very little to completely disrupt the entire industry. The question to me is are the increased costs of diversification worth the risk of temporary (or maybe permanent) disruptions to manufacturing. Then again, when I studied political science and economics there was a common belief/theory that this sort of increased interdependency between countries (globalization) would decrease the likelihood of war and increase opportunities for democracy. So maybe it's a good thing.