Israel Defends Attack on Iranian Targets

An Israeli army spokesman says airstrikes against targets in Syria were vital to protect national security.

Also in the programme an interview with a former Colombian guerrilla fighter who's now running for election. And a look at the human immune system.

PICTURE: The remains of a missile that crashed earlier in Alonei Abba, east of Haifa, in northern Israel. CREDIT: JACK GUEZ/AFP/Getty Images