https://www.nytimes.com/2018/02/21/magazine/the-myth-of-the-hacker-proof-voting-machine.html

>>11824673 (pb Notable about Dominion failing to pay taxes in MO and maybe not legal to be used there.)

I don't know about other counties but Boone County uses DS200 by ES&S.

Like Dominion, there are problems with ES&S. Story related.