The difference between playing slots and betting on horses may sound obvious — but it's not at Greyhound Park in Post Falls. (Inlander photo: Young Kwak)

At the Inlander, Daniel Walters scrutinizes the "instant racing" machines that have Idaho's American Indian tribes upset:

It's been nearly 20 years since the last greyhound raced at Greyhound Park. These days, the predominant sound at the facility isn't the barking of dogs or the cheering of fans. It's the chattering of gaming machines. 'It's time to make your dreams come true and live a life of pleasure!' the Deep Sea Treasure machine sings to a reggae beat. 'Don't stay behind; it's time to find your deep sea treasure!' Hit a few buttons, and the columns of treasure chests, pufferfish and minnows start spinning. There are 35 gaming machines at Greyhound Park, with names like 'Cruisin' For Cash,' 'Yukon Willie's Gold Rush!' and 'Wild West Willie's Bonus Spin!' They look like slot machines, spin like slot machines, beep and whir and shell out big winnings like slot machines. But in Idaho, outside of Indian casinos, slots are illegal. Wagering on horse and dog races isn't." More here.