I do not believe there is even an allegation of urine being "thrown" onto a Koran.
I guess my question is how do you splash something with urine without first throwing it at it?
This was probably an excerpt being taken out of context and then trumpeted to the sheeple by the malicious, ignorant, suicidal Leftists in the MSM. Probably, these sub-humans were busy throwing their own excrement and urine about, and some MP's interceded, and some urine was splashed onto the Koran being held by one of the sub-humans involved in the scuffle.
IMO, first, there should be no Korans in Gitmo, for security reasons. We are trying to get intel from these fanatics. No comfort should be provided. Second, there should be no terrorists at Gitmo either, except for those buried in the ground.
PS: I wonder, had someone made a display, with the Koran sitting in a jar of urine, and sprayed with elephant dung, would the left applaud?