captioning sponsored by macneil/lehrer productions want a key test vote on heal care reform toda ifill: i m gw ifill. on the nshour tonight, the stage is set for a critical christmas eve vote brown: we ll lk to senators sherr brown and lindsey graham aut the bill s components, cpromises and polics. ifill: th thousands of iranns turn a funeral for a dissident clic into a full- scale street protest. rgaret warner looks at what s next for the oppotion inran and their supporters here. brown: what hapned in copenhagen andhat now. now it s to people to come together because we need a deal that iseal. brown: ray suarez jt back from the climate summit plains. ifill: and wel take a second look atohn merrow s reports on an attempto overhaul aajor urban school syem, whatever it takes. compassion . i think that when u re doing the kind of rk that i m doinin public education where the lives and th futures children hang in the balae, you cannot ..you can t pl with that. b