Senator FIELDING (Victoria—Leader and Whip of the Family First Party) (14:49): My question is to Senator Carr, the Minister representing the Minister for Infrastructure and Transport. Given so many travellers were recently left stranded in airports and the failure of airlines to notify them beforehand of the cancellation of flights in and out of Melbourne, can the minister tell the chamber what time the relevant government agencies advised the airlines of the approaching ash cloud and the nature of this advice?