This is absolutely fascinating, but I'd say the title isn't fully accurate. These vaccines seem to be entirely neutralizing methamphetamine in all it's functions. Using alcohol as a metaphor, it'd be like you could drink as much as could fit in your stomach and just never get drunk.<p>So while yes, I can imagine it'd be useful in preventing addiction, does it really mean the same if you're physically/mentally incapable of feeling the effects of the substance to begin with?