Alondra Nelson, the author of 'Body and Soul: The Black Panther Party and the Fight Against Medical Discrimination,' writes that "the Party's focus on health care was both practical and ideological." On a practical level, the BPP provided free community health care services, including preventative education. Simultaneously, the BPP railed against the medical-industrial complex, declaring that health care was "a right and not a privilege."
One of the lessons that the BPP offers today's activists is that they should be more loyal to the desired outcome than to the tactic. The sit-in came to be associated with the southern civil rights movement just as the mic check is now emblematic of the Occupy movement. But these groups also used other tactics: marching, occupying, sermons, etc. Social movements are dynamic phenomena; circumstances are constantly changing. So too should tactics.