Why isn't Diebold liable for fucking up?

Given the current voting situation in this country, why aren't the electronic voting machine companies (Diebold, ES&S, etc) criminally and monetarily liable when their machines fuck up? Sarasota, Florida, obviously has a problem, and I think ES&S (the company that provided their machines) should have to pay for all recounts, pay for a new election if necessary, and the CEO (who used to be Chuck Hagel, interestingly enough) should be put in prison for interfering with an election. Drastic? Yes. But that might be what it takes to get their attention, and get things straightened out. But a boy can fantasize...