Diplomatic dispute? That means customers to be had.

One cheeky optician known for its humor is running a full page ad in a British newspaper that cashes in on the recent Korean flag mix-up at the women's soccer game between North Korea and Colombia.

The ad appears Friday in the pull-out Olympics section of Britain's Daily Telegraph newspaper. It features both the North Korean and South Korean flags side-by-side. Underneath is Korean writing which, when translated, roughly matches the optician's famous advertising catch phrase: "Should have gone to Specsavers."

The South Korean flag was mistakenly displayed on the giant screen before the match in Glasgow, Scotland, on Wednesday night. The North Korean team refused to take the field for about an hour before the game started. London organizers have since apologized for the mix-up.

North Korea's IOC member, Chang Ung, has now proposed that Olympic protocol officials meet with team leaders before every medal ceremony to check that the correct flags and national anthems are used.

—Fergus Bell — Twitter http://twitter.com/fergb

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