In 2008, Montana was the canary in the coal mine. About a month before the election, a local citizen named Jacob Eaton formally challenged Kevin Furey’s voter registration, swearing that he was no longer eligible to vote. Furey had asked the post office to change his address from Helena to Missoula. Eaton asked local election officials to take Furey off the Helena rolls. Eaton did not, presumably, know that his target was 1st Lieutenant Kevin Furey, an Army Reserve officer deploying to Iraq. Lt. Furey had asked the post office to send his mail to his mother in Missoula while he was overseas. His legal residence never left Helena, and his right to vote there never changed. Had the challenge succeeded while he was deployed, Lt. Furey would have lost the chance to vote for his own commander in chief. Lt. Furey was not alone. Amateur “sleuths” challenged the voting rights of more than 6,000 other Montanans, based on a blunderbuss attempt to scan data records for ostensibly suspicious activity. When something looked suspicious (to them), they asked officials to cancel the offending registrations. In Montana, the challengers looked for postal records that didn’t match the voter rolls; other amateur detectives deployed different variations elsewhere.