Support for War in Afghanistan Falling

According to the HuffPo, support for the continuing war in Afghanistan has fallen below levels for that in Iraq and Vietnam.  What puzzles me is who on earth supports continuing pouring lives and tax dollars into that pit?? Oh yes, our Secretary of State does, perhaps the President does--it's hard to tell. 

According to the article "gains made by the United States would be significantly lost by 2017 if the United States and Afghanistan do not make a new security pact allowing troops beyond the deadline "

So if we leave in 2014, all the lives lost and ruined over the preceding 13 years will be for nothing by 2017. What a waste, what a tragedy!