Canadians expect their politicians to be able to stand up for themselves. Dion never seem to understand this. He constantly railed against the Conservatives and the lies they told about him. He took such lies as a personal insult. His caucus followed his lead. The Liberals were constantly asking for apologies. Worse, the Liberals were often so busy asking for apologies that the lies that were the source of their outrage were forgotten during the self righteousness grandstanding that followed.
Thankfully, Ignatieff seem to see things differently. He said that the Conservatives owe the Liberals nothing least of all an apology. However the Conservatives owe the Canadian people plenty, including the truth. A lie about Dion is to lie to the Canadian people. The Liberals need not, indeed must not, seek redress for themselves. To do so is forget what one of their most important functions as an opposition party is. Namely, the Liberals must protect the public by cataloguing and demonstrating Conservative mistruths. The Liberals can not allow themselves to be distracted and thus the public left in the dark.