A fundamental Muslim concept is called “TEKIYAH” which in Persian means a kind of “righteous deception.”  It is similar to the Arab belief, espoused in the Koran, that it is acceptable to lie and deceive those around you in order to bring the Infidels down.  Anything which would bring the reign of Mohammed was deemed acceptable according to text.  
This is exactly what Sheema Khan is practicing here and the G&M supports it by publishing it!