probably this..

or far fetch guess, for scientific research.. they supply it to a lab somewhere.. Hershel seem optimistic when he's talking with Rick about a cure..

they been there for so many days and they didnt ever heard a noise from d barn?
lame...

What? they haven't been doing it for months?  

Somehow I felt that Shane did the right thing. If he didn't do what he did, the Sophia saga will never end.

LoL... seriously season 2 is pretty much boring.
Only the first episode, and the episode that otis died much more interesting for me.

beesh plz,its not the first time we saw he shot a little girl in the head..remember ep.1 at the very beginning

damn...
need to wait for a long long time for next episode...

anyway i think the real reason why hershel didn't tell them about the "barn" is because of sophia... 

One thing is for sure...Sophia didn't 'accidentally' went into a barn full of rowdy walkers!!

lol the cdc (or lab mentioned by you) got that security because the protect important information + they run out of oil and electric 

Personally, I think that if zombie apocalypse were to truly happen it wouldn't make sense that organised military attacks would lose to slow, mindless zombies with only sheer number as their only advantage. Heck, even tanks can be defeated. Its a bit absurd and surreal.

On the other hand, a realistic ending would be that the undead will eventually rot to death (again) after all humans are gone and there is no more food left. What you guys think? Plausible?