"Abuse" is such a subjective term really. Flushing a couple of Korans down the toilet doesn't bother me very much, neither does Abu Gharib.
Abuse isn't really that subjective of a term; either it's abuse or it isn't. As someone who has a strong dislike of Islam and the Koran, I don't particularly mind the fact that they were flushed, but what if they did that to our Bibles? Abu Gharib on the other hand was a serious deal. Those pictures were ing scary, and it's sad that the Bush administration touts Iraq as a success.