Take for instance, the revelation that Barthanes Damodred is hosting Padan Fain and thus is probably a Darkfriend. Ingtar is horrified, and Verin has to remind him that they aren't all wretched beggars, that the mighty swear themselves to the Shadow as often as the weak.

Darkfriend Nobleman: I am legit shocked that the number 2 nobleman in this country is a Darkfriend!
Darkfriend Aes Sedai: You should not be. The Darkfriends are everywhere, we have to be suspicious of everyone!

Or the concern of the diminishing population of channelers. First, Sheriam is quoted as citing the depletion of the gene-pool courtesy of gentling men. Later, Verin and Alanna reference a discussion on solutions to that issue, where Verin rebutted a proposal by Alviarin.

What was it Yeats said? "The best lack all conviction, while the worst/ Are full of passionate intensity." As the end times approach, it looks like the Black Ajah are the only ones trying to address the numbers issue!