****** Biologist Richard Dawkins launches into a full-on appeal for atheists to make public their beliefs and to aggressively fight the incursion of religion into politics and education. Dawkins' scornful tone drew strongly mixed reactions from the audience; some stood and applauded his courage. Others wondered whether his strident approach could do more harm than good. Dawkins went on to publish The God Delusion and become perhaps the world's best-known atheist. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at ****** Follow us on Twitter ****** Checkout our Facebook page for TED exclusives ******