In many cases, falsehoods and half-truths come with no "moral" baggage for the Muzz and sometimes lying is a "religious" requirement.
Muhammad's minions will use deception when proselytizing and also as a weapon for fighting Jihad. They will lie to suck people into Islam, cover up the the truth about Muhammad, obfuscate the real intentions of Muslims, and to promote confusion as well as chaos within a target society.
"The commands of the prophet may be performed alike, by fraud, or by force. Of Mahometan good faith, we have had memorable examples ourselves. When our gallant Decatur had chastised the pirate of Algiers, till he was to renounce his claim of tribute from the United States, he signed a treaty to that effect; but the treaty was drawn up in the Arabic language as well as in our own; and our negotiators, unacquainted with the language of the Koran, signed the copies of the treaty, in both languages, not imagining that there was any difference between them". -John Q. Adams
Speaking is a means to achieve objectives. If a praiseworthy aim is attainable through both telling the truth and lying, it is unlawful to accomplish through lying because there is no need for it. When it is possible to achieve such an aim by lying but not by telling the truth, it is permissible to lie if attaining the goal is permissible (i.e. when the purpose of lying is to circumvent someone who is preventing one from doing something permissible), and obligatory to lie if the goal is obligatory... it is religiously precautionary in all cases to employ words that give a misleading impression... [source: wikiIslam]
Taqiyya and Kitman
The role of Deception in Islamic Terrorism
Tradecraft. Persona. Deception. Disinformation. Cover: Western operational terms and techniques. But, Islamic terrorists have their own terms: taqiyya (pronounced tak-e-ya) : precautionary dissimulation or deception and keeping one's convictions secret and a synonymous term, kitman: mental reservation and dissimulation or concealment of malevolent intentions...
Taqiyya and kitman or ‘holy hypocrisy' has been diffused throughout Arabic culture for over fourteen hundred years since it was developed by Shiites as a means of defence and concealment of beliefs against Sunni unbelievers. As the Prophet said: 'he who keeps secrets shall soon attain his objectives.'
The skilful use of taqiyya and kitman was often a matter of life and death against enemies; it is also a matter of life and death to many contemporary Islamic terrorists. As so often in the history of Islam, a theological doctrine became operational.
During the Spanish inquisition, Sunni Moriscos attended mass and returned home to wash their hands of the ‘holy water'. In operational terms, taqiyya and kitman allowed the ‘mujahadeen ' to assume whatever identity was necessary to fulfill their mission; they had doctrinal and theological and later jurisprudential sanction to pretend to be Jews or Christians to gain access to Christian and Jewish targets: ‘the mujahadeen can take the shape of the enemy'.
According to Christian ethics lying is a sin; In Islamic jurisprudence and theology, the use of taqiyya against the unbelievers is regarded as a virtue and a religious duty.
Like many Islamic concepts taqiyya and kitman were formed within the context of the Arab-Islamic matrix of tribalism, expansionary warfare and conflict. Taqiyya has been used by Muslims since the 7th century to confuse and split 'the enemy'. A favored tactic was ‘deceptive triangulation'; to persuade the enemy that jihad was not aimed at them but at another enemy. Another tactic was to deny that there was jihad at all. The fate for such faulty assessments by the target was death. [source]
Twelve Tactics of Taqiyya
Lying and deception for the benefit of Islam
 Taqiyya about taqiyya
Of course taqiyya won't work once the infidels realise they're being duped, so Muslims deny that taqiyya exists, or that it is used to deceive infidels. 'There is no such thing as Taqiya' or 'Taqiyya is something I never heard of and I had to go and look it up' or "Taqiyya is only practised by Sunnis/Shi'ites, we Shi'ites/Sunnis always tell the truth". See here and here for refutations. Also Denying the Denial: Taqiyya About Taqiyya; Lying About Lying
 Playing the race card and guilt by association
An accusation of racism is such a trump card that Jihadists will play it whenever they can. Despite Islam not being a race, any criticism of Islam immediately gets the knee-jerk retaliation of 'racism'.
For example; 'You are expressing the same views about Islam as racists, therefore you are a racist.' This is similar logic to to 'Communists believe two and two make four. You believe two and two make four. Therefore you are a Communist'.
 Godwin's Law
- a special (and inevitable) version of guilt by association with racism used in online discussions, whereby the first person to invoke Hitler or the Nazis wins the argument. The 'logic' is something like:
CRITICISM OF ISLAM = RACISM = NAZISM
Therefore, if you criticise Islam you are a Nazi.
 Circular reasoning
'The Koran says it is the word of God. So whatever it says must be true. Therefore it is true that the Koran is the word of God because it says so'
 The infidels' quotes from the Koran are always taken out of context.
For example 'Kill the unbelievers wherever you find them' is taken out of context, and really means 'Kill the unbelievers wherever you find them setting fire to your house' - or something similar.
 Infidels can't understand the original Arabic of the Koran
So 'Kill the unbelievers wherever you find them' is actually a Medieval Arabic expression meaning 'Help old ladies across busy streets and remember to feed the birds in winter'.
 Tu Quoque (you also)
'We blow people up/ behead them but you do the same,' - Normally used in attempts to refute arguments that Islam is intrinsically violent. Often refers back to the Crusades, Inquisition etc. Also 'There are equally nasty bits in the Bible'. Yes, there are violent episodes in the Bible, but the Bible is descriptive of battles and massacres long ago, whereas the Koran is prescriptive of battles and massacres yet to come.
 'Abrahamic/monotheistic faith' false kin argument
This scam usually take the form of 'Islam is just a further development of Christianity, a brother Abrahamic/ monotheist faith.'
Of course it isn't! Islam is a travesty and perversion of Christianity in many respects, and Jesus would probably have advised the pedophile Mohammed to tie a millstone round his neck and jump into the sea. (Mark 9:42). In Islam stoning of women is still a major spectator sport, whereas Jesus forbade it (John 8:7). Human sacrifice is an abomination in Judaism and Christianity, but is encouraged in Islam.
 Quoting abrogated verses from the Koran in order to appear moderate
A favorite one is 'Let there be no compulsion in religion'. This verse and many like it are actually null and void and disregarded by all Muslims (though not by gullible infidels). They are peaceful Meccan verses which are competely cancelled by later and much more violent Medinan verses.
 'You owe us a debt of gratitude because Islam is the basis of Western civilisation'
This sort of statement is usually backed up by revisionist arguments that Muslims invented everything and were responsible for the Renaissance (Sheikh Speare was a Muslim playwright etc).
In some ways this is a rather pathetic quest for significance. Muslim culture has been moribund for the past 600 years, whereas the West has forged ahead. Muslims now want a stake in the success story by claiming they were somehow responsible for the West's development.
 'A third of the world's population believe in Islam, so it deserves respect.'
- But not so long ago a third of the world's population believed the earth was flat. Numbers don't mean anything, especially when the Islamic population is the most backward and illiterate on earth. Muslims are very keen on 'respect', but someone should tell them that respect needs to be earned.
 'We are victims of Islamophobia'
Muslims are always playing the victim, if not of racism then of the even more heinous thought-crime of ISLAMOPHOBIA. Of course there is no such thing as Islamophobia, since a phobia is an irrational fear, whereas fear of Islam as a clear and present danger is a totally rational reaction from any infidel.
...and, let's make it a baker's dozen...
 Sufis are non-violent
This is an example of the Good Cop/Bad Cop routine. Sufis portray themselves as being a kind of Buddhist version of Islam: peaceful, mystical and generally fluffy and New Age. Well-meaning Westerners are attracted by Sufis in the hope that they have finally found examples of the elusive Moderate Muslims. [source]
In short, don't trust the Muzz. They are subversives and deception in one of their favorite tactics.
-Fatwa On Islam
-Fatwa On Islam