- CRISPR kill switch for bacteria so they can do a job and then self-destruct. Scientists plan to eventually use such switches in the human body, adding them to probiotics, or in soil — maybe to kill pathogens that are deadly to crops. “This is the best kill switch ever developed,” scientist said. https://source.wustl.edu/2022/02/moon-develops-targeted-reliable-long-lasting-kill-switch/ 368 comments science