Who are the main 'siloviki' or 'men of force,' the heads of Russia's security structures? In response to a request from a patron, I give a run-through of the people and their prospects.Relevant other IMS episodes I mention are on Shoigu (here), Naryshkin (here) and Patrushev (here).And then after the break, I take a quick look at Biden's "killer" comment, how it was received, and what it might - or might not - mean.You can also follow my blog, In Moscow's Shadows, and become one of the podcast's supporting Patrons and gain question-asking rights and access to exclusive extra materials right here.