What the fuck is with the term "non-conventional" weapons? They are not "in different taste" (in fact, as weapons to kill people, they make perfect sense). The difference, is they are generally *immoral* to use.
I guess it does say something nice that acting rightly is so conventional here that we built it into our language. But for some groups, using gas and bio and terror and suicide bombings and anything else to kill civillians and/or troops *is* the convention. And we shouldn't let them off the hook by calling them anything but evil murdering fucks.