These folks took a stand, stood up to be counted. At first through 'acceptable' channels, through law-abiding traditional methods. And when they realized that sanctioned forms of (controlled) opposition such as political activism, protests, letter writing, petitioning politicians, collecting signatures, organizing sit-ins were ineffective, they decided to take a calculated risk with their livelihoods, freedom and reputations, and did what needed to be done. They took no credit, they sought no limelight or recognition. For good reason, of course. Yet, ironically, because they were successful in evading detection, they perhaps lessened some of the impact of their (unquestionably courageous and ultimately effective) deed.