A young man in a dangerous neighborhood is questioned by a patrol officer - because he acted suspiciously, or because he was African American? In 2001 Timothy Thomas was shot by an off duty policeman - because he was thought to be reaching for a gun, or because he was black? This NBC Dateline video visits the Cincinnati police department and other jurisdictions across the United States to investigate instances of racial profiling. Includes statistical data, as well as comments by citizens, police offic ials and experts. Study guide available. NBC News productions.