Don't Ever Antagonise The Horn:
Chicago artist Michael Hernandez de Luna has been subverting the postal system
in the name of art for 10 years, creating bogus stamps related to current events, mailing them and then
putting them on show. However, the FBI and USPS now say he has gone too far
with his most recent "mail art" project, for which he created and mailed
an anthrax-themed stamp.