Hanson sees the possibility that the Greek financial meltdown will cause a resurgence of German nationalism; which he argues the EU was established to forestall. He compares today's China to the Japanese Empire of the 1920s, with the chance that it too will begin to expand into adjacent territories.
Hanson fears that the Arab Spring will not lead to an understanding that the region's wretchedness is caused by its own cultural shortcomings. He finishes his "tour" with what is happening here at home, concerned that our government totally misreads our situation and place in the world.
I've merely outlined his discussion, very briefly; I recommend the article to you in its entirety.