Presented by Emily Maitlis
Tonight, Newsnight hopes to bring you breaking news on the Afghan Conflict. Our Diplomatic Editor is squirreled away, firming things up, so forgive me if, for obvious reasons, I don't go into more detail right now. It should all make sense at 10.30pm.
What we can spell out - indeed what the PM himself spelled out to the Commons this afternoon - was that another 500 British troops would be sent to Afghanistan. He imposed certain conditions - namely that Afghanistan itself would have to train more soldiers and NATO would have to commit more troops and, curiously, that the UK service personnel would have to be properly equipped - a condition presumably, well within his grasp.
The announcement came after one of the most sombre PMQs I can remember - dominated not by future troops, but by those who had lost their lives in Afghanistan during the summer recess. The roll call of the dead - 37, since Parliament last met - took a full two minutes to read out and left its shadow on all the House proceedings thereafter. Tonight, we'll be asking not just about strategy in Afghanistan but about purpose.
Also tonight, we put the Greens on Trial.
Would the cause for climate change be more widely accepted - and acted upon - if their proposal had involved fewer hair shirts and a less cloying scent of burning martyr?
Or - to switch that round - is it possible to be properly green and carry on living our rather carbon-extravagant lives?
The mainstream politicians would tell you that you can - is it only the Greens who are honest enough to tell us sacrifice is essential? Our studio panel of radicals will include Zac Goldsmith and Caroline Lucas.
Read Justin Rowlatt's blog Also you might recall last night Jeremy promised we'd be throwing a couple of MPs to the lions. Well, you can find out what they made of that one. In the spirit of the Green debate, it might be enough to turn even a lion vegan.
Join me tonight at 10.30pm on BBC Two.
Emily