Chipotle hired Palantir because the last time it lost track of sick employees, the Justice Department fined the company $25 million and the stock lost two-thirds of its value. Most people remember the 2015 E. coli lettuce panic. That's actually not what got them charged. Four of the five incidents in the federal case were norovirus from employees working while sick. Chipotle had a written rule sending sick workers home and managers just ignored it. One Ohio store poisoned 647 people in five…