The Wall: A World Divided - Preview

Airs Monday, August 8, 2011 at 10:00 p.m. ET/PT. Check you local listings. Airs Monday, August 8, 2011 at 10:00 p.m. ET/PT. Check you local listings. Airs Monday, August 8, 2011 at 10:00 p.m. ET/PT. Check you local listings.