Muslim deception.
The Arabic word, "Takeyya", means "to prevent," or guard against. The principle of Al-taqiyya (also called taqiah, Al-takeyya, Al-taqiyah, or kitman) conveys the understanding that Muslims are permitted to lie as a preventive measure against anticipated harm to one's self or fellow Muslims. This principle gives Muslims the liberty to lie under circumstances that they perceive as life threatening. They can even deny the faith, if they do not mean it in their hearts. Al-taqiyya is based on the following Quranic verse:
"Let not the believers Take for friends or helpers Unbelievers rather than believers: if any do that, in nothing will there be help from Allah: except by way of precaution (prevention), that ye may Guard yourselves from them (prevent them from harming you.) But Allah cautions you (To remember) Himself; for the final goal is to Allah." Surah 3: 28
According to this verse a Muslim can pretend to befriend infidels (in violation of the teachings of Islam) and even display false adherence with their unbelief to prevent them from harming Muslims. Under this concept of Taqiyya, if under the threat of force, it is legitimate for Muslims to act contrary to their faith. The devout are taught that in such circumstances the following actions are acceptable: Drinking wine and alcoholic beverages, abandoning prayers, skipping fasting during Ramadan, renouncing belief in Allah and Muhammad, kneeling in homage to a deity other than Allah, and uttering insincere oaths and covenants.
Al-taqiyya and dissimulation refer to the practice of Muslims blatantly lying to non-Muslims, but the principal goes beyond mere lying for propaganda purposes. In accordance with this license to deceive, during time of weakness the Qur'an allows Muslims to have both a declared agenda and a secret agenda. The theological principle of Taqiyya means hiding one's true beliefs and intentions to confuse ones adversaries and enable mujahedeen to operate freely amongst enemies.