Theres something eating at Google employees. Roughly one dozen employees of the search giant have resigned in the wake of reports that the ... company is providing artificial intelligence to the Pentagon. The employees resigned because of ethical concerns over the companys work with the Defense Department that includes helping the military speed up analysis of drone footage by automatically classifying images of objects and people, Gizmodo reported. Many of the employees who quit have written accounts of their decisions to leave the company. Their stories have been gathered and shared in an internal document. Google is helping the DoDs Project Maven implement machine learning to classify images gathered by drones, according to the report. Some employees believe humans, not algorithms, should be responsible for this sensitive and potentially lethal work - and that Google shouldnt be involved in military work at all. The 12 resignations are the first known mass resignations at Google in protest against one of the companys business decisions - and they speak to the strongly felt ethical concerns of the employees who are departing. In addition to the resignations, nearly 4,000 Google employees have voiced their opposition to Project Maven in an internal petition that asks Google to immediately cancel the contract and institute a policy against taking on future military work.