The 1990s were a decade of transformation and optimism. Teenagers were listening to grunge rock and hip hop on their walkmans. Flannels and jean jackets became staples of '90s fashion. And seemingly without warning, the Cold War was over, the Soviet Union had dissolved, and the United States emerged as the sole superpower. Today's world seems more dangerous and competitive than that of 30 years ago. So how did we get here?

In this episode of None Of The Above, the Institute for Global Affairs' Mark Hannah revisits some of the most pivotal events of the 1990s with the help of Stephen Walt, a professor of international relations at Harvard University. They discuss promises and follies of America's efforts to shape the new world order. Former NPR correspondent Deborah Amos and retired ambassador Thomas Pickering also provide personal insights and commentary.