http://chronicle.com/img/photos/biz/Ticker%20revised%20round%2045.gifBy . Nine out of 10 public universities use sworn police officers with the power to make arrests, according to the results of a survey released on Tuesday by the Bureau of Justice Statistics. That is compared with 38 percent of private colleges. And over all the number of campuses using armed officers rose from 68 percent in the 2004-5 academic year to 75 percent in 2011-12. More...