Bad Teachers' Rubber Room

Tonite a guy who'd been watching "CNN or FOX, I don't know which..." told our weekly sr. cit. adult-ed class there was a 'rubber room' in NYC where K-12 teachers who'd failed to get tenure just killed time & collected their pay, thanks to their union. It took the whole class, with the intervention of the community college VP who conducts it to disentangle union from tenure in this guy's mind, but he finally got it as the class ended. Here's the New Yorker version of what he saw. http://www.newyorker.com/reporting/2009/08/31/090831fa_fact_brill