SPOILER
I am watching now "Talking Dead." The host asked if Merle was justified throwing in a walker with Glen handcuffed to chair. One of the guests on the programs said "yes."

They also discussed how this is Glen becoming a man and the possibility of him being a "leader." Oh, and I wasn't the only one outraged by the Governor's attack on Maggie.
TIS
Btw, the scientist guy doing that experiment on the Walker that Andrea killed. Was the patient anybody we know?