It's How They Communicate.

Apparently.

https://news.sky.com/story/queen-intervenes-to-cut-sentence-of-convicted-killer-who-restrained-london-bridge-attacker-12107168

Unfortunately I'm still only on episode 4.

https://m.imdb.com/title/tt8874516/?ref_=m_ttep_ep_ep4

So still don't know the extent to which Blindspot just cleaned them.

In the wake of the Skripal poisoning.

Of course, we all know where the K&R rules originated.

Don't we.

https://youtube.com/watch?v=1WaV2x8GXj0 (Ring of Fire, Johnny Cash, Official Audio).