To provide the college student the chance to learn in various venues and circumstances, the school should carefully balance free speech and expression with worries about avoiding bad publicity, and charges of protecting obscenity
or ignoring the rights of people who feel threatened. Key
policies are the campus speech code, the conduct violation
policy, and the regulations regarding acceptable use of computers
and telecommunications.

Charges of sexual and racial harassment sometimes force colleges
to revise their speech codes to try to prevent students from
offending others, knowingly or unknowingly. Such revisions cause
major problems with free expression, which this essay from the
Justice on Campus website addresses.  See also the comments on the
speech code written at Carnegie-Mellon U. In 1995, which caused a
lot of controversy at that time.