There are a lot of different pension schemes out there as the feds, states, and localities do not use uniform plans. What I've seen, though, is that there are now "two tiers" - one for older employees and another for younger ones. You can guess which plan is more generous...

A lot of localities and states see the writing on the wall - that their perpetual 9% growth rates and population increases won't keep up, and are thus moving new employees into 401K plans, no different than the rest of us in the private sector.

Honestly, I don't think I'd be able to tolerate being a teacher or state employee, and knowing that my manager, 20 years older than me, has a retirement worth 3x as much, and it will be funded by increasingly shorting me on salary and benefits (along with tax increases) as the pension liabilities become harder to pay. Look at certain cities like Chicago and Baltimore and states like New Jersey for a current example.