Police allege an Australian man is behind "Ghost", a messaging app they say is used by serious criminals all over the world.

Plus, the sudden detonation of handheld comms devices across Lebanon has caused death, injury and widespread panic. 

Also, how will Instagram's 'teen accounts' actually work?

And from no lifts to being separated from the action, we hear what it takes to plan a night out when you have a disability. 

Guests: 

• Nigel Phair, Director, UNSW Institute of Cyber Security
• Javed Ali, former FBI counter terrorism official
• Ange Lavoipierre, technology reporter, ABC