I care not what the religion is, but I detest when one religious group or another believes they know better than history and destroy artifacts that have been religious icons for centuries. A few centuries back it was King Henry 8 vandalising English churches believing statues there were idolatrous. Not long ago it was Buddha statues in Afghanistan. Now we read ISIS has destroyed the tomb of Jonah. Once gone, these artifacts are gone for ever. We have no right to decide we know better than history whatever the case.
See http://www.huffingtonpost.com/2014/07/25/isis-jonah-tomb_n_5620520.html .