Latin America Clowns Convention

I didn't know that, but every year, clowns of the whole Latin America organize a convention to discuss their rights. In Mexico, where was the last one, clowning is considerer a business. A lot of families survive like this: going to the streets to make satirical jokes, most of the times about the government and the social problems. I found some pictures of the last convention. Look at that, they look so serious.