Medical staff and officials at the Calgary Zoo are trying to find out what killed 34 cownose stingrays in the span of just 24 hours.

Newly disclosed documents show Canada knew the United States secretly paid Pakistan $500,000 to capture Canadian citizen Abdullah Khadr in what his lawyers said Monday was another notorious example of Washington's outsourcing of torture.

Prime Minister Stephen Harper has unveiled a long term plan to ensure the Canadian Forces gets new and improved equipment as well as increased numbers of troops in the years ahead.