Afghanistan – Should We Stay or Go?

When he campaigned for the job he has now, Barack Obama said that Afghanistan was a war that we needed to win.  Now, we see the recent alleged gunning down of Afghan civilians by a member of the U. S. Military which has spawned Afghan President Hamid Karzai saying that foreign troops should stay on their bases and believes that the US is not cooperating with the probe into the incident.

Combining this with the recent Koran burning there, some are now calling for the US to pull out.  Even the President, according to some, is starting to say that we need to get out.  The ultimate question here is should we?  What do you think?