I think the brand of rabid, virulent marxism sweeping latin and south america are possibly the biggest challenge we face. They may very well eclipse the radical islamists. And I think China is behind it.
And I think China is behind it.
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That is my first thought as well. We are witnessing a race to see if Freedom or Chinese communist control spreads faster in the next ten years. The confounding factor is that individual Chinese are joining the middle class at a great rate, which never really happened behind the Iron Curtain, and they may not want to look on the US as a Great Satan.