There’s a big battle brewing in the Jefferson County, Colo., school system. The manufactured controversy over a proposed curriculum review is generating national headlines. But the fight is not about what misguided students and biased reporters say it’s about. “Censorship” is a red herring. The real issue is union control.

Here’s the deal: Public school teachers in this Denver-area district walked out of their classrooms this week to protest the implementation of performance-based pay. The JeffCo school board approved the new compensation system last week, which rewards the most highly effective teachers with 4.2 percent raises, effective teachers with 2.4 raises and inferior teachers with nothing. Only 2 percent of teachers received no pay raises.