<P> After he inadvertently discovers the presence of walkers in the Greene barn , Maggie ( Lauren Cohan ) begs Glenn ( Steven Yeun ) to keep it a secret . Dale ( Jeffrey DeMunn ) quickly notices Glenn 's nervousness , and when he talks privately to Glenn , Glenn blurts out about the walkers as well as his knowledge that Lori Grimes ( Sarah Wayne Callies ) is pregnant . Dale confronts Hershel ( Scott Wilson ) about the walkers . Hershel believes they are still people , including his wife and stepson , and can be cured , and refuses to kill them after Dale explains the danger . Meanwhile , Rick ( Andrew Lincoln ) and Lori argue on what to do with Hershel 's demand to leave the farm , now that Carl ( Chandler Riggs ) is healed . </P>
why is hershel keeping walkers in the barn
Hershel believes they are still people and can be cured