Wait a minute. Just last week the head of the FSB was considered a worthy participant in the debate on the subject of terrorism: he headed the Russian delegation to the Countering Violent Extremism Summit. How ludicrous, and schizo, is that? The guy goes from interlocutor to persona non grata in a period of mere days. To quote Casey Stengel: can’t anybody here play this game?
Any sanctions forthcoming will likely have the opposite of the intended effect. Putin will interpret them as demonstrating a lack of seriousness, a token response meant to keep up appearances, rather than as a serious challenge. He will view such actions as a green light, not a yellow let alone a flashing red. He will understand that he faces an irresolute, incoherent, and timorous opposition, and will act accordingly.