"It's domestic politics mixed with an attempt to make new nation states and political systems and institutions that are so vital, he says, arguing that it's not a coincidence that new governments are being challenged most. "And that is a pretty heady mix."
US officials were quick to denounce the video as "reprehensible" this week, but that was not enough to tamp down the fury felt across the globe.
On Thursday, the high walls of US embassies in Sudan and Tunisia were scaled and breached by crowds; Salafists in Tunis replaced the embassy's US flag with their own black one, and the American school there was set alight.
American flags were torched from Tehran to Amman to Kuala Lumpur. Egyptian protesters fought street battles with security forces. In Afghanistan, which was otherwise surprisingly quiet, an effigy of Barack Obama was burnt in an eastern province. In India-administered Kashmir, the top Islamic cleric told all Americans to "immediately leave" because Muslim sentiments "have been hurt by these pictures."