Mark Steyn... accuses many thinkers of refusingto call a spade a spade. Photo: Jason South JOURNALIST, columnist and arts critic Mark Steyn is no stranger to invective, either in dishing it out or copping it. And in the age of the blogosphere, where hardline political commentary is parlayed across the internet in a blink, vituperative attack is worn like a badge of honour. "You can't argue with endorsements like these," announces Steyn's own website before proudly quoting his detractors. "The arrogance of Mark Steyn knows no bounds." (The Saudi ambassador to the US) "Dangerous Idiot of the Week." ( New...