Growing Zika virus outbreak, Canadian PM Justin Trudeau, Arab Spring fifth anniversary

Canadian Prime Minister Justin Trudeau on how a liberal former school teacher got elected to Canada's highest office and what he intends to do while in that office. And, on the fifth anniversary of the Arab Spring, Fareed asks how and why it went so badly wrong. And, the growing threat of the Zika viruswhat can the current outbreak tell us about our preparedness for the next pandemic? GUESTS: Justin Trudeau, Sonia Shah, Leila Fadel, Tarek Masoud, Sharmeen Obaid-Chinoy