ZERO DARK THIRTY is a low point in Kathryn Bigelow's career.

Reposting a comment I just left on the HOLLYWOOD ELSEWHERE site:
Have finally seen ZDT. Another film glorifying whatever-it-takes vigilantism--and it's stretching far too much to attach moral complexity to the job-fatigue burnout exhibited by Clarke and Chastain's characters. Earlier Bigelow films like BLUE STEEL and K-19: THE WIDOWMAKER surpass ZDT in character depth and examining the limits of bordering-on-fascist absolutism.
And Jennifer Ehle blows Jessica Chastain off the screen in ZDT. The limits of Chastain's talent and overhype have been decisively exposed.

Adding to the above: ZDT built up a lot of manufactured controversy from comments about whether torture brought about the eventual discovery and execution of bin Laden (the old Dick Cheney "torture works" argument) instead of the "why are we sinking to this level of depravity" moral inquiry sparked by the Abu Ghraib naked detainee photos.