Canada's Suncor Energy Inc.

By Alexander Panetta, THE CANADIAN PRESS OTTAWA - Prime Minister Stephen Harper has agreed to a public inquiry into the politically sensitive Mulroney-Schreiber affair, but the most basic rules of how the probe will operate remain shrouded in mystery.

By Jim Brown, THE CANADIAN PRESS OTTAWA - The federal government is challenging a study, commissioned by families of the Air India bombing victims that suggests systemic racism may have played a role in the way officials dealt with the tragedy.

By Tobi Cohen, THE CANADIAN PRESS TORONTO - A def

By Bruce Cheadle, THE CANADIAN PRESS OTTAWA - Prime Minister Stephen Harper invited months of lurid headlines Tuesday when he bowed to public pressure and set the stage for a public inquiry into the Mulroney-Schreiber affair.