The report can be read here.
His comments can be read here.
The New York Times provides a Q&A overview of the report here.
The US Department of Homeland Security (DHS) has published redacted files concerning Maher Arar, a Candian/Syrian dual national who was mistakenly suspected of terrorist connections. He was detained in the US and rendered to Syria, where he was tortured. The US Government contends that he was deported to Syria, rather then rendered.
The files can be read here (under Records Concerning the Removal of a Canadian Citizen to Syria).