The video of Samuel Dubose's death has spurred anger nationwide. 

So have countless other videos showing police officers involved in altercations or fatal shootings. These moving images have the power to galvanize people to press for change. But there's a problem. What we see might not always reflect the whole truth.

A video can only show us one perspective and that's assuming it's completely raw and unedited. Rita Kirk, a professor of communication at Southern Methodist University joins the show for more.