Representatives of Human Resources and Skills Development Canada appeared before the House of Commons Standing Committee on Human Resources, Skills and Social Development and the Status of Persons with Disabilities (HUMA) to account for HRSDC's data loss. The testimony will appear here, when the transcript is prepared: House of Commons Committees - HUMA (41-1) - Study Home - Ensuring the protection of personal information held by HRSDC. You can watch the testimony by clicking on the Webaast icon here.
Though the HUMA committee has oversight of HRSDC, they should also be dragged in front of the Standing Committee on Access to Information, Privacy and Ethics (ETHI), which has oversight of privacy more generally.
Here is the Toronto Star's coverage of the appearance: Ottawa sorry for losing data on 500,000 Canadians.