Top Priority Sector:  airport_aviation_security Exelis C4i, a business unit of Exelis Inc. has been awarded a contract extension by Airservices Australia to provide its voice communications system to six additional airports. Read More…. For more information go to http://www.NationalCyberSecurity.com, http://www. GregoryDEvans.com, http://www.LocatePC.net or http://AmIHackerProof.com The post Airservices Australia extends Exelis C4i…