A House Foreign Affairs hearing originally scheduled for this Wednesday has been postponed in light of the shooting Saturday of Rep. Gabrielle Giffords (D-Ariz.).

The hearing was titled, "The United Nations: Urgent Problems that Need Congressional Action." Foreign Affairs was the only House committee that had a hearing scheduled for this week, and the hearing is now expected to take place sometime later this month. Below is a list of witnesses who were scheduled to attend:

Brett Schaefer, Jay Kingham Fellow in International Regulatory Affairs at the Heritage Foundation's Margaret Thatcher Center for Freedom

Robert Appleton, former chairman of the United Nations's Procurement Task Force

Claudia Rosett, journalist in residence at the Foundation for Defense of Democracies

Hillel Neuer, executive director, UN Watch