Former U.S. Secretary of State Antony Blinken: There’s a lot of understandable nostalgia for the past because we had an American century. We had 80 years where as a result of the work that previous generations did, we were at the front of the parade and shaping things. And those 80 years, with all of their imperfections, profound as they were, we passed that. And the reality is you can't put the genie back in the bottle. We've got to shape a new bottle.