Forty-two journalists have been killed so far this year. Joel Simon of the Committee to Protect Journalists, talks about threats that face journalists around the world. We’ll find out how the city of Istanbul became a cosmopolitan crossroads of the modern world. Photographer Stephen Shames tells us about chronicling the lives of boys kids growing up in the Bronx over 20-plus years. Plus, our word maven Patricia T. O’Conner talks about the etymologies of New World foods.