Why is this damaging Canada's interest?
The issue is Trudeau and the Liberal government making a big payout to protect Goodale and all the rest of the former Chretien cabinet ministers who authorized CSIS to interrogate Khadr when he was in Guantanamo prison.
If this was such a just issue as Trudeau said it was, he would have stayed in Canada to announce it instead of trying to make the deal in secret with no detailed announcement - his version of hiding in the closet.