Canadians should  be concerned with his involvement in the mistreatment of prisoners issue - which  the Liberals wanted investigated  but now refuse to open up. Sajjan's main source of intelligence appears  to been Asadullah KhalidIn. In 2010, CBC News revealed the existence of top-level Canadian government documents reporting the personal involvement of Khalid in serious human rights abuses in his own private dungeon. Documents also said that Christopher Alexander,, alleged that Asadullah Khalid had ordered the killing of five United Nations workers by bombing, presumably to protect his narcotics interests.  The other source was Ahmed Wali Karzai. A June 2009 U.S. embassy cable alleged that much of the actual business of running the Afghan city of Kandahar "takes place out of public sight, where Ahmed Wali Karzai operates, parallel to formal government structures, through a network of political clans that use state institutions to protect and enable licit and illicit enterprises."