Shock
Nationalism resonating from media overdrive
Irrational jingoism
Heroism
Machismo
Fear
Cowardice
Pressure to confirm
Irrational submission to authority
Need for a paycheck
Need for institutions to perpetuate institutions
Lack of creative thinking
Cohesion behind leadership
Need for consensus
Inability to envision the US doing anything bad (sort of the Madonna/Whore complex of nationalism)
A lack of awareness of the concept of self-organizing deception through market forces
Linear thinking
No thinking - just following orders
Thinking like Pomeroo
The systemic bias of no one ever viewing the problem as possibly an inside job
Very interesting list. One slight criticism. "Thinking like pomeroo" implies a vast (and vastly improbable) conspiracy of pomeroo's neurons, which wouldn't find anything amiss when Snidely Whiplash lashes Nell Fenwick to a railroad track with a train only a mile out. Perhaps you should say "Not thinking like pomeroo."
I think we'd do well to consider an analogous question - "How could journalists not adequately report on serious issues (including US facilitated genocide, such as in East Timor), and instead show a remarkable subordination to power?" Coverage of atrocities in E. Timor disappeared as the atrocities worsened to genocide. (So says Chomsky, who has researched this in detail, and compared to coverage of the atrocities and genocide in Cambodia.)
Journalists will tend to internalize the values of their professional environment, as described by Noam Chomsky in Necessary Illusions - Thought Control in Democratic Societies. See pp. 10 - 12, where Chomsky describes journalists often meeting very high standards, the problem being "choice of topics and highlighting of issues, the range of opinion permitted expression, the unquestioned premises that guide reporting and commentary, and the general framework imposed for the presentation of a certain view of the world".