From the article:

“Katy Bar the Door” was inspired by the ongoing ICE raids through America, tearing families apart. Vocalist Tim McIlrath said about the track, “This is not the first time in history we have reckoned with abuses of power. Bearing witness to the fragility of democracy is a scary thing, and it demands a response.”

“Living Undercover,” meanwhile, is a more introspective piece, focused on the experience of having something to hide, whether out of shame or fear. McIlrath said, “Sometimes it’s because we’re building something beautiful behind the curtain, other times we’re hiding some kind of darkness. I like the cloak and dagger feel of the song that ties into its central theme.”