Special edition: Conversations with Great Minds

­Thom Hartmann talks to Michio Kaku about his new book Physics of the Future. String theory, time itself and how bubbles form are all on the table. They also talk about the Fukushima nuclear power plant meltdown and the future of energy. Michio Kaku speaks directly to President Obama, who supports nuclear power. Then Thom talks to global activist and former green jobs advisor to President Obama Van Jones, co-founder of RebuildTheDream.com.