"Use of a pig model to demonstrate vulnerability of major neck vessels to inflicted trauma from common household items," from the American Journal of Forensic Medical Pathology.
My favorite line from the abstract:
"...it may not be possible to remove all dangerous objects from aircraft. Security systems may therefore need to focus on measures such as increased surveillance of passenger behavior, rather than on attempting to eliminate every object that may serve as a potential weapon."
hat tip to Schneier on Security