These two screen shots were taken within 5 minutes of one another. The Tepco cam, below, provides a time stamp for the TBS screen shot, which is first.
I cannot tell if the yellow halo is a function of the light or whether unit 2 is glowing. I've noticed increased emissions in the area of two, but there are also increased emissions visible in other locations as well so I'm not sure whether unit 2 is actually glowing or not.