Mr SIMPKINS (Cowan) (14:40): My question is to the Minister for— Honourable members interjecting— The SPEAKER: The member for Cowan will cease. I know it is Thursday, I know there was a ball last night, but there seem to be many members who are anxious to leave the chamber, and I am ready and willing to accommodate them. The member for Cowan has the call. I will not tolerate a wall of noise. Mr SIMPKINS: My question is to the Minister for Immigration and Border Protection. Will the minister update the House on action the government is taking to counter the threat posed by extremists returning to Australia?