Extinction Rebellion activists abseil off Tower Bridge in climate protest

The transcript includes a brief mention of a committee, expressions of uncertainty, a farewell, and a discussion about placing items and past actions.

What is the main topic of the discussion?

What is the speaker's response to the question about someone's bag?

What does the speaker imply about the location mentioned?

How does the speaker feel about the previous actions taken?

What does the speaker mean by 'we've done that already'?