Calls for inclusion and accessibility for SCâs blind community VIDEO: Calls for inclusion and accessibility for SCâs blind community By Paola Tristan Arruda | February 25, 2021 at 9:42 PM EST - Updated February 25 at 11:36 PM COLUMBIA, S.C. (WCSC) - The National Federation of the Blind of South Carolina says opportunities have grown for blind and visually impaired people over the years, but there are more barriers to be broken. David Houck is the executive director of the Federation Center of the Blind, which serves as the headquarters of the National Federation of the Blind of South Carolina. The organization offers a wide variety of programs and services designed to âencourage independence and productivity, and to promote respectful attitudes about blind people and blindness.â