Nepal's earthquake has renewed interest in international volunteer tourism as good samaritans line up to help. It's one of many "voluntourism" opportunities that let people pay big money to experience a different culture and do good. But is the multi-billion-dollar industry serving the host communities as much as the volunteers? At 19:30 GMT, The Stream asks what responsible voluntourism looks like.

Former world champion Garry Kasparov gave up checkmating his opponents in chess for the maneuverings of politics. During his career as a Grandmaster he broke dozens of records, won countless matches and is considered one of the greatest chess players of all time. In 2005 he retired from the game of chess and formed a movement against Russian President Vladimir Putin, even announcing a run for president. Though his bid failed, he continues to campaign against Putin and what he calls his "authoritarian rule." Today he works on promoting human rights in Russia and around the world