In this case, I don't think your cynicism is justified. Not at all.
If Hersh is even 50% accurate, this story should be a VERY big deal. I recommend that you read the original article, and then tell me it shouldn't be news.
Click here:
http://www.lrb.co.uk/v37/n10/seymour-m-hersh/the-killing-of-osama-bin-laden
Just add it to the unending list of Obama lies...