We should not be engaging in polluting activities just because they're affecting other people and not Americans," says Obama. MySpace & MTV team up to bring you a series of Presidential Dialogues with leading candidates. You can be part of these LIVE, interactive events right here at www.myspace.com/election2008. Check out highlights from the second Dialogue with Barack Obama live from Coe College in Cedar Rapids, IA and see how he handled tough questions from the crowd and from YOU