Pedro Reyes says being Mexican is like living in an apartment where an upstairs neighbor has a leaking swimming pool. Just what is leaking," says Reyes, "is hundreds of thousands of guns." Reyes believes art should address social issues like gun violence, even when they're difficult and controversial. "We have to be allowed to ask questions," he says. "If you are not allowed to ask questions, you are not free." Reyes also addresses the issue of gun violence in another way, by using guns themselves. His first project began in 2007 in the Mexican city of Culiacan. As part of a campaign to curb shootings, the city collected 1,527 guns. He used them to create art. "Those 1,527 guns were melted and made into the same number of shovels," he says. "So for every gun now, there's a shovel. And with every shovel, we planted a tree." Now Reyes is working on a new project. It is one that transforms guns into something more musical. An exhibition of the work is on display at the University of South Florida's Contemporary Art Museum. It's called "Disarm," and consists of guns that have been turned into musical instruments." To me at least," Pedigo says, "the concept is about taking weapons that are destructive in nature and chaotic and trying to make them for something else. So, instead of objects of destruction, they become objects of creation." That's exactly Reyes' point. Art, he says, is about transformation. "It's the same metal," he says, "but it is no longer a gun. It's now a flute or a guitar."