Reviewed in this essay: Ezra Levant, The Enemy Within: Terror, Lies, and the Whitewashing of Omar Khadr. McClelland & Stewart, 2011.   Ezra Levant’s jeremiad, The Enemy Within: Terror, Lies, and the Whitewashing of Omar Khadr, is not actually about the eponymous Pakistani-Canadian, but rather about Toronto and the “professional protestors of the anti-war left.”…