As tenure disappears, thanks in no small part to the many pigs among the tenured faculty, especially those who lust after administrative posts, academic freedom will disappear too. Constant struggles will be necessary to achieve even the victories gained so far in the Salaita case. How often will it be that a similar situation arises?
In 45 years of teaching, I knew but a handful of principled faculty, people who would make a personal sacrifice to uphold academic freedom, for example, and not a single administrator. Right from the Chancellor down to the department chairpersons. The default position for a "principled" professor is to write a letter. So how likely are the necessary struggles to take place?
When the Yale workers went on strike, David Montgomery wouldn't even get his mail on campus much less teach his classes there. He's unfortunately dead.