Red Lines and Tipping Points

According to US President Barack Obama, Syria’s alleged use of chemical weapons earlier this month crossed a red line. But a report in Foreign Policy magazine says the US actually helped Iraqi leader Saddam Hussein use chemical weapons against Iran in the ‘80s. We hear from one of the report’s authors.

We also remember Martin Luther King's "I have a dream" speech and the historic civil rights march on Washington DC 50 years ago this week.

And call centre workers in the Philippines who live on “American time”; and we speak to one of the photographers behind a new show at Boston’s Museum of Fine Arts depicting the bedrooms of teenagers in the US and Middle East.

Picture: Soldier in a gas mask, Credit: Pascal Guyot/AFP/Getty Images