Series 9 Episode 4 discussion

[femaleBertieWooster]

From reading everyone's new comments a new off-the-wall idea has hit me.

Spoiler: show

It is possible that Ruth is the traitor. She is the one who is on Lucas' tail while the others, who are just as smart, have no suspicions of him at all. Here's my reasoning.

1) We are all suspicious of Lucas. As above, why is no one else suspicious?
2) Lucas saying "A traitor is a traitor" in front of everyone when the prudent thing would be to keep his mouth shut.
3) Ruth turning Harry down. She would have at least taken the opportunity to spend more time with him (a let's talk about it approach) if she didn't think it was totally doomed. She does care for him and may want to keep him out of the center of events if things start unraveling. The Harry/Ruth story is played out, sorry but it's true.
4) She was off the grid for a season and it would be child's play to write a back story about how it happened.
5) The only thing standing between this plot line and it's realization is the fans. We've been burned in the past. Writer's would not pass up a shocker like this for us.

Too lazy to google but don't the Russians and Chinese have a symbiotic relationship?