I think it's most noteworthy that we're not talking about Islamists or Muslim extremists here. We're talking about ordinary Muslims from an ordinary Muslim neighborhood in a Muslim country.
Islam needs to be reformed so that Muslims can be reformed. Muslim neighbors in a U.S. city are a whole different thing than Muslim neighbors in a Muslim country. It's a mistake to hold up Western, educated, Muslims as examples of typical Muslims. As long as Islam includes Shariah law and embraces Jihad, it won't be unusual to see normal Muslims agitating against and attacking non-Muslims.
(I was looking for one not photoshopped I saw a while ago of a copy of the bible that'd been used as a target.
Found lots of links to that old story of them going haywire after a U.S. soldier used a koran as a target)
I like the suggestion to recycle them. Even keeping copies around in museums for reference is too dangerous. Some idiot might decide to take them seriously and start the dangerous mental viruses spreading again.
"Religious tolerance" is fake. They won't tolerate other religions any farther than they have to. They "tolerate" others as much as civil society forces them to. Take it back a few centuries, and "heretics" and "pagans" were so much firewood.