The Streisand effect in this case would be Mayor Bloomberg's reaction, threatening to destroy any of Banksy's artwork found and arrest him if possible. Honestl

The Streisand effect in this case would be Mayor Bloomberg's reaction, threatening to destroy any of Banksy's artwork found and arrest him if possible. Honestly, he couldn't pay for that kind of publicity, and unless the good Mayor is actually in on it, Banksy must be grinning from ear to ear at the irony.