Unfortunately, the U.S. government violates "rule of law" norms in other areas too. The Foreign Intelligence Surveillance Court does not operate with "procedural and legal transparency." The Office of Legal Counsel adopts highly contestable yet totally secret interpretations of statutes that dramatically affect policy outcomes. Citizens and corporations are served with secret court orders and often feel confused about whether they are even permitted to consult with counsel. Laws against revealing classified information are not enforced equally—powerful actors routinely leak official secrets with impunity, while whistleblowers and dissidents are aggressively persecuted for the mere "mishandling" of state secrets. The director of national intelligence committed perjury without consequence. President Obama has blatantly violated a duly ratified, legally binding treaty that requires him to investigate and prosecute acts of torture. He also violated the War Powers Resolution by participating in the military overthrow of Muammar Qaddafi without securing the approval of Congress. And he won't even clarify exactly what groups he considers us to be at war with!
That is only a partial list.
The rule of law's erosion in post-9/11 America was begun by the Bush administration and continued by the Obama administration. Congress has failed to stop it. The Washington, D.C., establishment has done far too little to object. Partisan voters all across America have excused the transgressions of their side.
This cannot go on indefinitely without causing serious harm to our country.
Unlike the Civil War, World War I, or World War II, there will be no definitive date when the War on Terrorism ends. The pattern of wartime abuses followed by a peacetime course correction will not automatically reassert itself in coming years. If the rule of law is to be recovered, lawbreaking officials must be held accountable for their actions, rather than presuming that they can invoke terrorism and do what they please. Congress must stop abdicating its responsibilities as a check on the executive branch. Transparency must once again govern what the law is and how it is applied. All this will require changing the attitudes of at least some respected Washington insiders. If you have constructive thoughts on such a project I invite your emails.
*Update: A lieutenant in the U.S. army writes (as a private citizen, not in his official capacity):
In the first sentence of the article, you state that "The US Army field manual defines..." and proceed to lay out the Army's doctrinal definition of "Rule of Law." This is inaccurate and misleading to the lay reader who has no knowledge of how Army policy and doctrine are published and communicated. In truth, there is no one Army "Field Manual." Instead, there are a plethora of different publication series which lay down everything from standardized training practices to official Army policies to doctrinal tactics, techniques, and procedures. These consist of constantly-updating field manuals (FMs), Army Regulations (ARs), Army Doctrinal Publications (ADPs), Army Doctrinal Reference Publications (ADRPs), and countless other Training Circulars, Handbooks, and Journals which the various branches of the Army publish. The publication you reference in your article is a handbook published by CLAMO (Center for Law and Military Operations), which is an organization that is a part of the Army's Staff Judge Advocate Corps and thus is a valid reference. There is nothing wrong with using it as a source for your article. However, I would suggest referring to it as a "Handbook published by the Army Staff Judge Advocate Corps" as opposed to "The Army field manual."