http://www.canadianbusiness.com/comp...31_65102_65102

Sometimes a man's trash is also his treasure. So it was for Mark Hill, who was thoroughly vexed when he learned that private investigators hired by Air Canada seized his garbage and recycling bins, and reconstructed the shredded documents contained within.
From the larger article.

Spy vs. Spy

http://www.canadianbusiness.com/comp...31_65158_65158