Senator Johnston asked the Minister representing the Minister for Defence, upon notice, on 22 March 2011: With reference to the answer provided to Question on Notice No's. 117-119: (1) Can details be provided of the Defence Materiel Organisation's expenditure at Defence Materiel Washington. (2) Why is this a regular fortnightly recurring expense. (3) What is the official purpose of this expenditure. (4) Who approved the expenditure.