The Walking Dead - Episode 2.09 - Triggerfinger - Interview with Robert Kirkman

No one could say that this episode was not action-packed.
ROBERT KIRKMAN: That’s true. I mean, look, there’s all that tension in the bar with those people outside and we barely even see them. It was a really cool move on [the part of showrunner] Glen Mazzera working with David Leslie Johnson on this script. They’re this strange outside threat and I think it makes them more scary because everything is played inside and it’s all done off the looks of Scott Wilson and Steven Yeun and Andrew Lincoln. I think the performances in that scene are tremendous.
What we’re doing in this second half of the season is taking characters we’ve gotten to know and putting them in situations you wouldn’t expect them to be in and doing things that we haven’t really seen them do. Seeing Hershel and Glenn move into kind of action hero mode, albeit briefly, is kind of a cool thing. And, also in this episode, Lori being surviving that car crash and fighting that zombie, off…. It’s important to recognize that Shane does come but he comes after she’s taken care of the situation. This woman is very capable and it’s cool to see her rise to the occasion and be able to handle that and show that she is a strong individual and is capable of existing in this world. The back half of this season is really going to be about learning more about these characters and seeing what they are capable of.

Right at the end of the episode, Lori came over very Lady Macbeth-y. She was literally whispering into Rick’s ear about taking Shane down.
Yeah, she’s terrified and with good reason. She could possibly be maliciously directing Rick towards a course of action or she could be, in her own, way, saying, “I’m terrified and I don’t know what to do.” There are a lot of different ways that you can interpret that scene.

Source: Full interview @ Entertainment Weekly