i am kakenya ntaiya. this is my vital voice. now raise yours. [childresinging] man: like what you saw? then visit viewchange.org, linktv's brand-new multimedia website. watch over 200 stories about new solutions to the developing world's biggest challenges, get involved with the issues, share the stories with friends, and help change the world. all at viewchange.org. úúúoçoçúúñ >> "viewchange" is about people making real progress in tackling the world's toughest issues. can a story change the world? see for yourself. this is link tv's "viewchange," a new documentary series. >> we left as the sun reddened and dropped, and we directed ourselves to the desert. we had been told by the villagers that we were close to ethiopia, that all that was left was to cross the desert, that in a week's time we would find the end of sudan.