How did a University of Oregon Prof get his hands on 22000 confidential records?

Easy... he just had to ask for them.
http://www.oregonlive.com/education/index.ssf/2015/01/university_of_oregon_illegally.html

http://www.amazon.com/Counter-Terrorism-Issues-Studies-Courtroom/dp/1466571926/ref=sr_1_10?ie=UTF8&qid=1409481192&sr=8-10&keywords=castagnera