Wisdom is the retention of innocence through adversity.

Russian President Vladimir Putin has invited President Trump to Moscow just days after the White House postponed a planned meeting between the two leaders in Washington until after the midterm elections. The invitation to Moscow comes after Trump and Putin met for a summit in Helsinki, Finland, earlier this month. For more about U.S.-Russian relations, we speak with world-renowned political dissident, author, and linguist Noam Chomsky. He is a laureate professor in the Department of Linguistics at the University of Arizona and Professor Emeritus at Massachusetts Institute of Technology, where he taught for more than 50 years.