An Antiwar Activist Known for Being Committed Yet ErraticBy JAMES DAO Published: March 12, 2004 TAKOMA PARK, Md., March 11 — Susan P. Lindauer wore her liberal politics on her sleeve, as well as on her aging Mazda, where bumper stickers proclaimed her unabashed opposition to the Iraq conflict. "Peace in Iraq through change at home," one said. "War is not the answer," another said. To her neighbors — who described her as gentle if somewhat lonely — Ms. Lindauer was typical of this left-leaning enclave on the northern doorstep of Washington, a place fondly known by its residents as...