Steven Salaita is a former Virginia Tech professor who accepted a tenure-track position at the University of Illinois at Urbana-Champaign. His appointment which was later withdrawn by the university after his outbursts on twitter, for example, this Nazi analogy:

#IsraeliIndependenceEquals sustenance of the European eugenic logic made famous by Hitler.

https://twitter.com/stevesalaita/status/463761614249148416