Should there be a massive anti-war march at the Democratic National Convention?

Plans for a united, mass anti-war march on Sunday August 24, on the eve of the DNC (August 25-28) have come apart recently. Recreate 68 called the march, and the Alliance for Real Democracy has decided not to build for it. Leslie Cagan, writing on July 8 for the staff of United for Peace & Justice, to Alliance for Real Democracy activists said, “We don't think it makes sense to plan for a mass march that might not end up being all that mass!” indicating that the UFPJ does not plan to support a march, in favor of smaller actions aimed at delegates.

Should leaders hold a massive march to prevent an attack on Iran, end torture, warrantless spying, the Iraq war, and further increase public support for the impeachment/removal/prosecution of Bush & Cheney (& others)?

If you do not know if you should vote yes or no, read this open letter.