Government officials and world institutions are even worse when it comes to self-censorship. On Feb 5, 2003, before then Secretary of State Colin Powell in his infamous WMD speech at the United Nations in New York, U.N. officials rushed to cover up the giant tapestry version of Pablo Picasso's anti-war mural "Guernica." Powell held up a little vial and told the world that, had that vial really contained WMD, it could kill tens of thousands. He managed to convince the already paranoid public that US invasion Iraq is a must.