The election supposedly can't be hacked

I keep seeing experts say that the election system can't be hacked...

Quote:

election officials and cyber experts say it's virtually impossible for Moscow or some other outside group to influence the election outcome.

... mainly because the system isn't centralized, and the voting machines aren't on the internet:

Quote:

The American election system is decentralized by design, with state, county and local governments all managing voting. Even though many precincts use voting machines, none are connected to the Internet, nor are they connected to each other.

Everybody knows which states are swing states, including Russia naturally. In a close election, tampering with the vote in selected precincts in selected states certainly could impact the outcome.

I'm skeptical that it's "virtually impossible". Your thoughts?

via International Skeptics Forum http://ift.tt/2ez7ff8