Joseph S. Nye Jr. is a leading US political scientist. He is also a former dean of Harvard’s John F. Kennedy School of Government and worked in various capacities with several American presidents. Nye is a prolific writer and has written over 13 books and over 150 critically acclaimed articles in professional and policy journals. He is also credited with the coinage ‘smart power’ that is much in use in diplomatic-strategic circles. He responded to some questions by Pranay Sharma on President Obama’s visit. Excerpts from the interview: