And, like all comments added by the copier that were not in the original, sic should actually be set apart using square brackets, not parantheses: [sic], not (sic).
"Intellectually, scientifically, even artistically, fundamentalism -- biblical literalism -- is a road to nowhere, because it insists on fidelity to revealed truths that are not true." -- Katha Pollitt
And, like all comments added by the copier that were not in the original, sic should actually be set apart using square brackets, not parantheses {sic}: [sic], not (sic).
Unless of course when, like me, you want to take the pedantry to the extreme, by quoting a sentence which has 'sic' between brackets as well as between parentheses in it already, which forces you to use something else - for example braces - to indicate a 'sic' of your own.