A chromosome translocation is visualized in 3D. The translocation is visualized by the colocalization of chromosome breaks marked with differently colored fluorescent proteins (green, red). DNA is stained cyan. This video relates to a paper that appeared in the Aug. 9, 2013, issue of Science, published by AAAS. The paper, by Vassilis Roukos at the National Cancer Institute in Bethesda, MD, and colleagues was titled, "Spatial Dynamics of Chromosome Translocations in Living Cells."