Slate has a detailed examination of the Litvinenko murder, and the nature of polonium, the ultimate smoking gun.
Fairly damning evidence against Andrei Lugovoy:
What can be said at this point is that Lugovoy was shedding radioactivity before Sasha was exposed on November 1. For example, Lugovoy contaminated the leather sofa in Boris’s study when he visited him on October 31.
Lugovoy might not have put the polonium in the teapot himself, but he did carry it around.
Sitting requires a lot of development, balance and strength chief among them. While L has, for some time, been sitting with supports, she’s recently begun sitting (and falling) all by herself.
Sitting brings a whole new set of possibilities. The ability to entertain herself by picking up things she sees around her is a big plus when everyone’s busy. The promise of crawling emerges when L leans forward and puts a fair amount of weight on her still-weak arms. Sitting is the first step toward mobility, for it means a much-expanded horizon for the Girl — much to see, much to tempt…