A comment on Banksy' work: is it Graffiti or Art?

Banksy Street Art http://www.streetartutopia.com/?attachment_id=785)

What if ordinances existed when we lived in caves 

prohibiting drawing on the walls...

Would we be here today?

What if it is prohibited today...

Will we be here tomorrow?

You might also want to check out my 7/10/11 blog:
Cave Art, Modernity, and Human Extinction