Tristin Hopper writing for the Canadian National Post:

He felt that in Canada the risk of violent protest was simply too high,” said Ryan Ruppert, president of promotions company Spectre Live Corp., which had booked Mr. Cheney for an April 24 appearance at the Metro Toronto Convention Centre.

So you're brave enough to send thousands to their deaths and shoot animals in a reserve, but not to face your critics? You sir, are beneath contempt.