STENCIL GRAFFITI

This is one of the largest stencils I've seen yet at roughly 1 and a half feet long and 1 foot high (located in San Telmo). I have walked by this particular building every day for the past 2 months and noticed it for the first time the other night. And while I'm not quite sure what it means, I could take a couple good guesses.
These stencils are used by artists, advertisers, and activists rather than the 15 year old street punk that many people would seem to think. I have seen all different kinds, from advertising a local newspaper to promoting safe sex to a comparison of GWB to Mickey Mouse.
I have heard that stenciling emerged in BsAs around the time of the economic collapse of 2001. It probably has been around much longer, just not to the extent that it is now.
I should note that this practice is illegal in Buenos Aires. Most stenciling is done either at night or during one of the protests/demonstrations taking place elsewhere in the city.
I happen to really enjoy the wall stencils. I find some funny, some sad, and all thought provoking...