From MoveOn.org, there's a demonstration today. I can't seem to find a link to it on their site, so here's the detail from the email they sent. See you there?
WHAT: Demonstration to demand the protection of our basic civil
liberties, and counter Attorney General John Ashcroft, speaking in the
latest installment of his stealth Patriot Act road show.
WHEN: Tuesday, September 9 at 12 noon
WHERE: Federal Hall, 26 Wall Street at Broad Street (next to NYSE)
2/3 or 4/5 to Wall Street or J/Z to Broad Street
Map: http://www.moveon.org/r?469
WHO: New York ACLU (www.nyclu.org), New York City Bill of Rights
Defense Campaign (www.nycbordc.org), United for Peace and Justice
(www.unitedforpeace.org), and 60 other civil liberties organizations.