TPM got a cease and desist letter from the New York Stock Exchange, claiming that pictures of the exchange floor are copyrighted. This means that, according to IP law, you would need their permission to use such a picture in the context of a blog post about Wall Street.
I’m not one for recognizing such absurdity, but it struck me that a particularly appropriate example image for Wall Street already exists:
I wonder how long of using that in Every. Single. Post. about Wall Street it would take before they gave up?