According to the paper, Yeshiva’s dean of students sent the following e-mail to the student body:
Many (if not most) of you are aware that a video was recently posted on YouTube that purported to show students rappelling down the sides of several of our buildings. We want to remind all of you in the most clear, simple and direct terms that any behavior or activity that can lead to anyone’s health or safety being jeopardized is absolutely unacceptable. As a matter of halacha (see Devarim 4:15), good citizenship and basic common sense, it is impermissible to put yourself or anyone else in a dangerous situation.
So Devarim 4:15 would forbid taking a job as an intelligence officer as such an occupation might require infiltrating terrorist groups? As long as necessary safety procedures and equipment is used, rappeling can be fun.