Short version: Taqiyya enables Muslims to lie to advance their faith (see the link for quotes from the Quran).  There is no such concept in Christianity.

There are two forms of lying to non-believers that are permitted under certain circumstances, taqiyya and kitman.  These circumstances are typically those that advance the cause of Islam – in some cases by gaining the trust of non-believers in order to draw out their vulnerability and defeat them.

Why does that matter?  Because you can never be sure if they are really telling the truth or just saying what they know you want to hear.  Just examine the % of Muslims in any population.  The larger it is the more aggressive and dangerous they are.  They start small, preying on your tolerance and kindness.  But when they get big enough they start making more and more demands.  Maybe they are telling the truth, but maybe not.

Then you get things like this: That Famous, Peaceful “Hugging” Muslim? Yeah He’s a Terrorist…

Remember the Muslim convert who stood outside Parliament last week, with a sign asking people if they were brave enough to hug him since wasn’t a terrorist?Yeah, he’s a terrorist. He’s facing jail time for threatening to blow up a MP’s house. No, seriously…Craig Wallace used the sign as Stop The War protesters came to Westminster for the vote on military action in Syria last week.It stated: ‘I am Muslim, I am labelled a terrorist, I trust you, do you trust me enough for a hug?’But the 23-year-old, of Willesden Green, north London, is now facing a possible prison sentence after he threatened Tory MP Charlotte Leslie online following the vote.Wallace, who calls himself Muhammad Mujahid Islam online, wrote on Facebook: ‘I’m going to smash her windows then drop a bomb on her house while she’s tucked up in bed. You dirty f****** pig-s******* s***.’But he likes to hug people so it’s totes okay.