If you’re wondering why Common Cause and everyone else who has studied the vulnerability of our elections to cyberattacks is pushing states to switch to paper ballots and post-election audits, check out this video from The New York Times. Alex Halderman, a computer scientist at the University of Michigan, explains how easy it is for hackers to make their way into electronic voting systems like those that became popular in the U.S. after the 2000 election.Watch how Halderman rigged machines at UM to produce a “victory” for Ohio State, the school’s arch rival, in a poll of student preferences.