Islam mandates deception [taqiyya] when Muslims deal with non-Muslims. Muslims are allowed to lie to unbelievers if the lie is for the protection of Islam or the furthering of Islamic goals and objectives. In the cause of Islamic expansionism Muslims falsely inform non-Muslims that: Islam is a "religion of peace", the Quran mandates pluralism of religions, "jihad" is only about an "inner spiritual struggle", unprovoked violence against non-Muslims is un-Islamic, immigrant Muslims wish to fully integrate into Western countries by adopting democratic principles instead of Sharia Law, Muhammad was a man of peace, etc. None of these things are true. Taqiyya is not about truth.

There are two forms of lying to non-believers that are permitted under certain circumstances, taqiyya and kitman.

Taqiyya - Saying something that isn't true.

Kitman - Lying by omission. An example would be when Muslim apologists quote only a fragment of verse 5:32 (that if anyone kills "it shall be as if he had killed all mankind") while neglecting to mention that the rest of the verse (and the next) mandate murder in undefined cases of "corruption" and "mischief."