Original article by Paul Maley
The Australian – Page: 1 & 6 : 31-Jul-17

Security has been boosted at Australian airports following the arrest of four men in Sydney on 30 July 2017. The four men, who are believed to be related, are suspected of plotting to bring down an aircraft by setting off a device that would have filled the plane with poisonous gas. It is understood that the arrests followed the receipt of information from a foreign intelligence service, and that the suspects were being assisted by Islamic State terrorists in Syria.

CORPORATES
AUSTRALIA. DEPT OF THE PRIME MINISTER AND CABINET, AUSTRALIAN SECURITY INTELLIGENCE ORGANISATION, AUSTRALIAN FEDERAL POLICE