And, the controllers have a single union and a Defined Benefit plan(if I'm not mistaken) that is predicated on the retirement age. Consequently, their retirement plan is a double edged sword as far as extending the age. The legacy carriers used to be that way with a DB but when that went "poof" and it became a hybrid or strictly a DC, then extending the age became somewhat more palatable.

But yet it still is happening to the controllers.