It's important to understand what Barak Obama meant when he said: "The future must not belong to those who
slander the prophet of Islam:"
"One of the most widely respected manuals of Islamic jurisprudence is Reliance of the Traveller, or ‘Umdat al-Salik, by Ahmad ibn Naqib Al-Misri. It represents the Shafiite school — one of the four major schools of Islamic law — and was written in the 14th century.
Here’s what al-Misri has to say about slander (quoting the al-Azhar approved official English translation by Nuh Ha Mim Keller):
r2.0 Slander (Ghiba)
r2.1 (Nawawi:) Slander and talebearing are two of the ugliest and most frequently met with qualities among men, few people being safe from them. I have begun with them because of the widespread need to warn people of them.
Slander
r2.2
Slander (ghiba) means to mention anything concerning a person that he would dislike…So “slander†does not have to be untrue, or damaging, or financially harmful. It simply has to be disliked by the person on the receiving end."
http://www.freerepublic.com/focus/f-bloggers/2936267/posts