Beginning with words from Joseph Conrad’s “Heart of Darkness” — “The horror! The horror!” — Mike Hanks takes us first through the darkness — the horror and futility of the U.S. drug war in Mexico — and then we move towards the “spark of light” Diego Huerta has created with his ambitious photographic project, “31K Portraits for Peace,” on exhibit at Austin’s Mexic-Arte Museum, which features thousands of striking and poignant photos of ordinary Mexican citizens holding origami doves of peace. The post includes a gallery of photos from the exhibit.