Checkout counters in dozens of Walmart stores across the country have quietly shifted from open access to strictly controlled express lanes, and the reaction from everyday shoppers has been sharp.

Add Yahoo as a preferred source to see more of our stories on Google. Some Walmart shoppers are grumbling about the retailer's self-checkout lanes. The benefit of self-checkout is in the eye of the ...

Some Walmart shoppers are grumbling about the retailer's self-checkout lanes. The benefit of self-checkout is in the eye of the consumer. For every shopper who is upset there's no self-checkout lane ...