PALO ALTO: After neatly spreading out a red-and-white checkered blanket with the contents of two wicker picnic baskets, Shannon Clark and Mike Reis settled in for the evening's entertainment: an anarchist protest rally in Palo Alto's Lytton Plaza that police feared might turn violent. "We are spectators," said Palo Alto resident Clark, 18, heading to UCLA in the fall who describes herself as a pro-Bush libertarian. "This is kind of our Saturday-night-out event." Indeed, the "Revolutionary March Against War & Empire" by the Palo Alto chapter of Anarchist Action -- targeting the war in Iraq and corporate greed -- brought...