Hoc est verum et nihili nisi verum

This is speech by Robert Spencer urging his listeners to defend free speech. Even the United States is just one Supreme Court ruling away from losing First Amendment right to freedom of speech. Slander in English Common Law means saying something about someone that is not true and harms their reputation. Sharia Law defines slander as telling something about someone that harms their reputation and true or not is irrelevant. While you still can check out this link Father Zakaria Botros on "The perverse sexual habits of the Prophet" which some day may be banned even here in Canada and even the United States as hate speech although is is part of Islamic teaching. Apparently it is only "hateful" when kuffers quote these texts.
A sample is quoted below:

Last we left the Coptic priest, he was reading from hadith reports stating that the prophet of Islam “admired” a 2-3 year old girl (saying that he hoped to live long enough to make her his wife), and “laid” in the grave with a dead woman.

In this episode, he began with the prophet’s “transvestite” tendencies. He read from several hadiths, including Sahih Bukhari—Fr Botros claims that there are no less than 32 different references to this phenomenon in Islam’s books—wherein Muhammad often laid in bed dressed in women’s clothes, specifically his child-bride Aisha’s.
Fr. Botros: “Perhaps Muslims think that he only dressed in Aisha’s clothes? Being that she was his “favorite,” perhaps after being intimate with her, he would merely lay in bed with her clothes?” (Here the priest put his face in his hands lamenting that he had to talk of such shameful things.)
Then he offered an interesting and revealing hadith, from Sahih Bukhari (2/911), which records Muhammad saying, “Revelations [i.e., the Koran] never come to me when I’m dressed in women’s clothing—except when I’m dressed in Aisha’s,” implying that it was something of a habit for the prophet to dress in female clothing.
Fr Botros next moved on to some commentaries in the Tafsir of al-Qurtubi—an authoritative exegesis in Islam. He read one anecdote where Aisha said that, one day, while Muhammad was lying naked in bed, Zaid came knocking; Muhammad, without getting dressed, opened the door and “hugged and kissed him”—in the nude. Elsewhere, Qurtubi concludes that, “the prophet—prayers and blessings upon him—was constantly preoccupied with women.”
Fr Botros to Muslims: “So this is your prophet—the most morally upright man? Instead of being preoccupied with, say, prayer or good deeds, he was preoccupied with women?”
He next read from Faid al-Qabir (3/371), wherein Muhammad is on record saying, “My greatest loves are women and perfume: the hungry is satisfied after eating, but I never have enough of women.” Another hadith: “I can hold back from food and drink—but not from women.” After reading these hadiths, Fr Botros would just look at the screen in silence, shaking his head.

It would seem that according to Islamic texts that the "Prophet of Islam" was sexual pervert but accurately quoting these texts constitutes defaming Islam according to Sharia Law. In Canada the truth is no defense to respondents accused of spreading hatred under Human Rights law a fact not lost on Imams in Canada.