Why don't you make a Facebook event for it? Even if I can't make it (and I may be able to after all) I can at least invite all my DC friends, and I'm sure there are plenty of people here who might also find a use for the event being advertised on Facebook. I have quite a few NT friends who either just don't understand the problem with Autism Speaks and would honestly like to learn why people don't like it, or would support a protest like that and would appreciate being included.