As journalists worldwide reacted with universal revulsion at the massacre of some of their own by Islamic jihadists in Paris, Al Jazeera English editor and executive producer Salah-Aldeen Khadr sent out a staff-wide email. “Please accept this note in the spirit it is intended — to make our coverage the best it can be,” the London-based Khadr wrote Thursday, in the first of a series of internal emails leaked to National Review Online. “We are Al Jazeera!” Below was a list of “suggestions” for how anchors and correspondents at the Qatar-based news outlet should cover Wednesday’s slaughter at the Charlie...