Who Speaks for Earth?

Alexander Zaitsev, Chief Scientist at the Russian Academy of Sciences' Institute of Radio Engineering and Electronics, has access to one of the most powerful radio transmitters on Earth. Though he officially uses it to conduct the Institute's planetary radar studies, Zaitsev is also trying to contact other civilizations in nearby star systems. He believes extraterrestrial intelligence exists, and that we as a species have a moral obligation to announce our presence to our sentient neighbors in the Milky Way—to let them know they are not alone. If everyone in the galaxy only listens, he reasons, the search for extraterrestrial intelligence (SETI) is doomed to failure.

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http://www.seedmagazine.com/news/2007/12/who_speaks_for_earth.php