Strolling down the street you see something strange, a light catches your eye and you look down the sewage opening and get surprised, if you are curious you ask yourself questions. You encounter the "migrant showing you their papers" but you are not sure what you have seen or understand who these people are.(un)Documented Disappearance was installed 2 weeks ago at several sites in the small city of Jena, Germany with the blessings of both the town and the university, though the local police department was apparently unaware that Ronen had "appropriate documents of permission." That's hopefully all cleared up by now. Ronen's blog documents his life as politial-artist and student including this unique work of art, "part of a whole public art interaction" going on in Jena.