Things we've either not successfully "pulled the plug" on despite the risks, and in some cases despite concerted military actions to attempt a plug-pull, and in other cases that it seems like it should only take willpower to achieve and yet somehow we still haven't: Carbon based fuels, cocaine, RBMK-class nuclear reactors, obesity, cigarettes.
Things we pulled the plug on eventually, while dragging it out, include: leaded fuel, asbestos, radium paint, treating above-ground atomic testing as a tourist attraction.
Things we pulled the plug on eventually, while dragging it out, include: leaded fuel, asbestos, radium paint, treating above-ground atomic testing as a tourist attraction.