The biggest threat to job security at most federal agencies is death. Incompetence, negligence and redundancy are rarely seen as cause for termination. In 2010, the dismissal rate for 168,000 federal workers in the Washington, D.C., area was .26 percent. That's point-two-six, not 26 percent or 2.6 percent. Local governments are little better. Short of murder or pedophilia, there's almost nothing a tenured public school teacher can do that will get him or her summarily fired. Read all the Keynes, Niebuhr, Schlesinger, Lippmann, Galbraith you can. You'll find nothing in there that even hints this is the way things ought to be.