I shall keep this brief, since Day Five is almost upon us. Firstly, I was totally right yesterday, getting rid of Torchwood entirely would have made this much better. Secondly, even with them in it, it's very good. The moral dimensions of deciding whether to hand over 10% of the world's children in exchange for not being burnt to a crisp (or however it's going to happen, my money is biological warfare given the nature of the original encounter and Jack and Ianto's meeting with the Ambassador) are fascinating. Watching the PM and the Civil Service discuss the specifics; referring to children as "units", arguing over the manner in which selection will be carried out, it's horrible, and it's vicious, and it's actually (incredibly) believable (arguing over whether less "socially useful" children should go first was particularly chilling in its plausibility). It's like watching the Wannsee Conference, only this time round you can actually understand that it might just be necessary. I don't even want to try and form an opinion on the whole thing, which given my track record will give you some idea of how difficult a choice the audience is being offered.
Of course, we're not through yet. Such a monstrously difficult dilemma, such a catastrophic choice, needs to be resolved properly. If RTD has learned this (or remembered it, perhaps would be more fair), then this could genuinely be some of the best television the BBC has offered this year.
To quote the Doctor himself: time will tell. It always does.