Roker and Capone are two famous American figures from the 1920s. Al Roker is an American television personality, actor, and author, best known as the weather anchor on NBC's Today Show. Alphonse 'Al' Capone was a notorious American gangster who rose to power during the Prohibition era. ALS is an acronym for amyotrophic lateral sclerosis, a progressive neurodegenerative disease that affects nerve cells in the brain and spinal cord.