(Interesting. I live in America, and I learned about this from an Iraqi blog.)
Anyway, the pro-freedom, anti-fascist and anti-terrorist rally is being sponsored by Free Muslims Against Terrorism. I've previously posted on these folks here; they are also linked on my sidebar.
The announcement at ITM reads:
Something wonderful is happening in Washington, DC. On May 14, several groups made up of Arab, Iranians, Kurds, Assyrians, Lebanese, Palestinians, Syrians, Sudanese, Muslims, Christians and Jews will converge on our nation's Capital for a rally against terrorism and to support freedom and democracy in the Middle East and the Muslim world. This will be the first rally of its kind in Washington DC that is led by Muslims and Middle Easterners.
Please join us and help us send a message of hope to the people of the Middle East who seek freedom, democracy and the elimination of extremism and terrorism.
This rally is NOT limited to Muslims and Middle Easterners. ...
Go read it all.