Questions And Mourning After Sydney Cafe Siege

Australians are mourning the two hostages killed in a 16-hour siege at a cafe, and asking how the attack happened.

Australia recently passed tough laws against terrorism. The attack was carried out by a man with a long history of run-ins with police. The government had information that the Islamic State sought to recruit individuals to carry out attacks in the country.

Peter Lentini, director of the Global Terrorism Research Center at Australia's Monash University joined Here & Now's Robin Young to describe the scene in Sydney.