Would The American People Support The War In Afganistan If We Were Receiving Heavy Casulaties

Since Obama IS going to put more and more energy Troops in The crushing Taliban and Al Qaeda, I'm afraid If We Receive heavy casualities The American people want us to leave Would Afganistan and not avenge The peole Who Died in 9 / 11. Do You Think That Might Happen? Would You Also Supporting the ongoing war in Afghanistan Even If We Get Heavy casulaties?