Some cattle mutilation researchers have proposed links between the phenomenon and covert chemical or biological weapons testing programs. This theory gained traction after investigations revealed that several mutilation hotspots were located near military installations with histories of chemical and biological research. The theory suggests that livestock were being sampled to monitor the environmental spread of test agents, with the surgical removal of specific organs reflecting targeted analysis for specific contaminants. The theory drew circumstantial support from reports of helicopter activity and the documented history of secret government testing programs. During the Vietnam War era, the U.S. military conducted extensive biological and chemical weapons research, and post-Cold War revelations about programs like Project SHAD (Shipboard Hazard and Defense) demonstrated the government's willingness to conduct covert environmental testing without public knowledge. While no direct documentary evidence links these programs to cattle mutilations, the geographic and temporal correlations noted by researchers remain intriguing.
