University of California staff warned against describing America as 'land of opportunity' and a 'melting pot' for fear of offending minorities | Daily Mail Online

"Professors are being trained not to use the terms because they are forms of unintended discrimination known as 'micro-aggressions'

The seminars are part of the university's aim of 'inclusive excellence'

But a former professor says staff are now worrying about what they say and even avoiding talking to others"