My Vote Is For Paper Ballots

We've just been notified by the federal government that 21 states had their election systems hacked before last year's presidential election. The notification came roughly a year after U.S. Department of Homeland Security first said states were targeted by hacking efforts possibly connected to Russia. So, why did it take so long for this information to come out? And, with the widespread nature of these hackers raising concerns among election officials, why don't we just go back to using paper ballots, like we used to?

If institutions like Equifax can be hacked, how much faith should we have in the security of our election system? Keep in mind that there is no evidence that a single vote was changed by hackers in the 2016 election. But given the stakes, and if "every vote counts," I say we go back to hack-proof paper ballots! What do you say?