Chretien, first and foremost, was responsible for the torture and inhumane treatment that Omar Khadr received. It mostly occurred during Chretien's time as prime minister. Martin simply did nothing, and so Khadr's illegal incarceration continued. By the time Harper came to power, Khadr was no longer being actively abused. But Harper refused, point blank, to provide any assistance to Khadr. Even the USA wanted Canada to take him out of Guantanamo. But Harper continued to deny Khadr his rights as a Canadian, and as a child detainee.