New York City and its teachers' unions have reached a deal to put an end to a bizarre and Kafkaesque system in which suspended teachers are placed in holding centres, dubbed "rubber rooms", doing nothing on full pay in some cases for as long as 10 years. The rubber rooms — so nicknamed after the padded cells of old-style mental hospitals — have become a symbol of the unacceptable face of the city's education system, which is the largest in the US. Around 600 teachers are currently occupying the temporary reassignment centres, as they are officially known, in locations across...