Most models are reloadable, and you only really use them on the unruliest of rioters. Flashbangs are good, but a bit excessive with potential for long term damage (though so is a tazer shock). They should stick to teargas and clubbings. They should also arrest anyone with a gas mask and make it a felony to bring one to a sporting event/mass gathering.
For God will not permit that we shall know what is to come... those who by some sorcery or by some dream might come to pierce the veil that lies so darkly over all that is before them may serve by just that vision to cause that God should wrench the world from its heading and set it upon another course altogether and then where stands the sorcerer? Where the dreamer and his dream?