Torture: Layton Takes a Swipe at Ignatieff

From Monday's Question Period:

Hon. Jack Layton (Toronto—Danforth, NDP):
Mr. Speaker, when it comes to this whole question of torture, unlike other party leaders, we are not going to stand for denying of the evidence. We are not going to cover up the truth. We are not going to write books justifying torture in any way, shape or form. Nothing can justify torture and nothing can justify the full-scale denial mode that we see from the Conservatives right now.

Why will the government not do the right thing and launch a public inquiry, as we have called for, so that we will have all the facts on the table?