http://www.911petitions.org/#worldmarch

1) nuclear disarmament at a global level
2) immediate withdrawal of invading troops from occupied territories
3) progressive and proportional reduction of conventional weapons
4) signing of non-aggression treaties between countries
5) renunciation by governments of the use of war as a means to resolve conflicts

SUPPORTERS:
Evo Morales
Isabel Allende
Helen Clark
Präsidentin Dr. Cristina Fernandez de Kirchner
Rigoberta Menchu Tum
Mario Soares
Jimmy Carter
Yoko Ono
Lou Reed
Noam Chomsky
Pete Seeger
Dennis Kucinich
Giulietto Chiesa
Tony Benn
Daniel Berrigan
Jean Ziegler
Greenpeace Ungarn
Michael Lerner
Mayors for Peace
Art Garfunkel
Amnesty International (Mexico, Uruguay, Chile)
Physicians for Global Survival, Canada

Dr. Harald Freyer, physicist, World Without Wars, one of the organizer ofs the march and Sudhir Gandotra, chair of the Humanist Party of India and spokesperson for the Asia-Pacific section of the march,
as well as several official supporters of the march like Pete Seeger, Dennis Kucinich,
Giulietto Chiesa, Dario Fo, Tony Benn, Daniel Berrigan and Jimmy Carter
have in the past publicly supported calls for a new investigations of September 11, 2001

Some of the organizers of the march have signed the declaration http://www.war-is-illegal.org
which has been signed by 3000 individuals, organisations, and numerous politicians

the declaration demands a new 9/11 investigation:

2) International investigation of the September 11, 2001 terror attacks. They are used as the central justification for the "War on Terror", but well documented evidence shows that the official explanation of 9/11 cannot be correct. International personalities in science, politics, and culture, including high-ranking military veterans, have called for a new investigation.

for the post, all the photos, and the link to the petition!

I especially like the poster with a woman's hands gently holding the Earth.