Today on the Signorile Show

3:35pm ET - Today, President Obama spoke before the United Nations, addressing issues of related to Syria as well as discussing the possibility of opening talks with Iran and President Hassan Rouhani.  We'll speak with Steve Clemons, Editor-At-Large with The Atlantic, about what future talks with Iran would look like.

4:35pm ET - The world's population is steadily growing and is one of the major issues threatening us as a species.  Alan Weisman, author of Countdown: Our Last, Best Hope for a Future on Earth, joins us to speak about his book which addresses overpopulation, how many people the Earth can support, and what we need to do to survive.

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