Can social networking fix U.S. image?

Is social media diplomatic window dressing or can the US Twitter its way into the hearts and minds of other countries? While the answer is somewhere in between, the U.S. cannot afford to wait while these channels are perfected in order to direct them in service of President Barack Obama's priority of renewing America's global leadership. Indeed, Mr. Obama can use the themes and technologies that helped him generate huge grass-roots support in his presidential campaign to build support for America on the world stage. There is a lot of ground to cover.