A wrench is a weapon in the war against loose bolts. However, most people would probably call it a weapon only when wielded with the intention of hitting another person.
I don't think it's fair to characterize the intention of stuxnet as blowing up reactors. From what I've read, the purposeful damage it was designed to inflict was to disable uranium-enriching equipment. I don't recall reading anything about purposeful attempts to use the software to kill or wound.
That's where I'd draw the line: purposeful killing. So I'd describe this as a case of cyber-sabatoge -- not a case of cyber-war.
I don't think it's fair to characterize the intention of stuxnet as blowing up reactors. From what I've read, the purposeful damage it was designed to inflict was to disable uranium-enriching equipment. I don't recall reading anything about purposeful attempts to use the software to kill or wound.
That's where I'd draw the line: purposeful killing. So I'd describe this as a case of cyber-sabatoge -- not a case of cyber-war.