Tagging is indeed a worldwide phenomenon, so in Buenos Aires. Opponents of graffiti may argue that tagging is just vandalism. In this case there is no reason to be upset because this tagged wall is in a youth culture related shopping mall in the Barrio Norte. Even though this may not initially appear as a work of art to everyone, the tags are forming an interesting structure. I would go along with Marcel Duchamp who once brought up the very valid question, "Can one make works of art which are not 'of art'?"