Laptops Searched and Confiscated at U.S. Border
Yes I had my laptop searched at Toronto Pearson by the rent a cop customs security team. I had password on my laptop I just put it in, mind you I couldn't be bothered with any hastle as I had been travelling 20 hours and a flight home to the UK to catch.
But I remember some 'older' laptops of the more bulkier type they took the batterys and hard drives out to see if there was anything inside. This was just before the Trans-Atlantic bombing attempt.