Enduring America's Coverage of Ashura (27 December)

We'll be LiveBlogging from about 0630 GMT (1000 Iran time) with all the developments of the day. We'll begin with an analysis considering the significance of Saturday's protests (in short, a huge boost for the opposition, but one which raises the stakes for Ashura even higher) and the possibilities for all the key actors --- the Supreme Leader, President Ahmadinejad, figures like Mir Hossein Mousavi, the senior clerics, and of course the Green Movement.

We look forward to spending the day with you tomorrow, benefitting from all your information and comments.