Con to the question "Do Electronic Voting Machines Improve the Voting Process?"
"With fewer than 24 hours before polls open for the 2016 US presidential election, consider this your periodic reminder that e-voting machines expected to tally millions of votes are woefully antiquated and subject to fraud should hackers get physical access to them.
A case in point is the Sequoia AVC Edge Mk1, a computerized voting machine that will be used in 13 states this year, including in swing states such as Arizona, Pennsylvania, and Wisconsin. The so-called direct-recording electronic vote-counting system has long been known to be susceptible to relatively simple hacks that manipulate tallies and ballots...
[T]he hacks might be used to alter a relatively small number of results in swing states, where outcomes have been known to be decided by fewer than a few hundred or a few thousand votes. The hacks could also be used to sow widespread distrust in the official returns and undermine confidence in the legitimacy of the election."
"US E-Voting Machines Are (Still) Woefully Antiquated and Subject to Fraud," arstechnica.com, Nov. 7, 2016