Animal rights activists and individual rights proponents are in a high fever over events unfolding in Santa Cruz, detailed in this article: UCSC researcher targeted in attack
It's hard to tell what really transpired at both locations. It appears that mayhem was threatened, if not carried out, at the home of the "cancer researcher," who may or may not have been hit by a "black object."
Regardless of the facts of the case, the militarized constabulary flexed their considerable black-clad muscles, (pictures at http://www.indybay.org/newsitems/2008/02/25/18481511.php) this being a chance to put their Homeland Security training to practice and use some of the Homeland Security black-booted thug equipment lying about the place.
Were they justified in serving a warrant on the occupants of the house? Probably. Did they overreact when they broke down the door instead of using the key conveniently supplied by the landlord? Most assuredly. Were the assembled multitude out of line in confronting the police? It sure didn't help, especially since they had no stake in the outcome, and were merely participants in the police show of power. In fact, their presence undoubtedly escalated the response by the constabulary.
As we've seen so many times before, direct confrontation of the apparatus of the state gives them an excuse for increased oppression of the people.
Crime control has entered the realm of theater, serving as a demonstration of the awesome power of the state over the lives and bodies of its citizens.
Shock and Awe in the Homeland.