shannon: stunning new details from the foiled terrorist plot to bring down a flight out of australia last month. we now know who made the explosives and how it got shipped via air mail from turkey to australia. security officials are calling this one of the most sophisticated plots ever attempted on australia soil. benjamin hall joins us live from london. is isis getting better about getting around western security? well, hi, shannon. certainly the ability to ship military grade plastic explosives halfway around the world on commercial air cargo is a great concern. whether it s a sign of sophistication or air cargo the weak link in safety is unclear. it was disrupted july 29th. the suspect had built the bomb, taken it to the airport but abandoned the plan before going through security. what we re learning is for more than three months the two