The Hersh article is an interesting read, and should be viewed with skepticism. However, the article allows one to question the story of what actually happened, and questioning one's government is what an informed electorate should do.
That said, it's a good thing that UBL is dead. How it happened, who did it, who was shot, where his body ended up, etc., may be disputed facts but points more to duplicity and double-crossing of non-citizens, rather than criminal activity and lying to Americans in a manner which causes serious damage to the country (see: Nixon, Richard, and Bush, George W.).
The case against torture is one that others have made in a more effective manner than Hersh makes by inference. The first 45 minutes of 'Zero Dark Thirty' tries to make the case for torture, and fails miserably--no sound thinking person can believe that footage, which is close to a snuff film.
The Hersh article may bring more clarity to this matter. I leave it to others to bring heat upon those who torture in this country's name--they have done much more harm than can be tallied.