Kahn lives is the Islamic political world of half-truths, deceptions, and secrets called “taqiyya". In any other religion telling lies and being deceitful is a sin. In Islam, telling deceptions to non-believers to protect Islam  is a pious duty. We in the west have no comparable ideology and most western people have a hard time understanding such a thing is even possible. That is why so much of what Muslims say compared to what they do confuses us.