I was able, with some difficulty, to load the TEPCO cams this morning.
Perhaps the icewall is working (at least for now) because the visible emissions are down substantially.
I also noted that work has been done to the common spent fuel pool. The work must have been done recently, perhaps yesterday.
Here are shots from today (April 8, 2016):
The unit 1 cam shows a sharp reduction in visible steam.
Here is the unit 4 cam view from today: