...Russian officials...promised that unpaid wages for workers who built the Sochi Olympic site would be settled before the Games start next month, but some human rights advocates expressed skepticism that the remuneration would be fully paid. The authorities carried out checks on more than 500 companies developing the Sochi site and by the end of December found seven firms owed their employees a total of 277 million rubles ($8.34 million) in unpaid wages, said Dmitry Kozak, the Russian deputy prime minister...Those wages were paid in recent days, he said. Hundreds of workers who built the massive Sochi Olympic site over the past six years have found their wages delayed or unpaid...One employer still owes workers some 2 million rubles ($60,230), but he guaranteed the money would be paid by Jan. 14. Mr. Lukin [human rights ombudsman] said...Some human-rights advocates...questioned whether all the laborers will indeed get paid. "Apart from the workers with normal contracts there were many migrant workers who didn't have properly formalized contracts," said Tanya Lokshina...Human Rights Watch. "I'm afraid that the problem will remain for this vulnerable category of people."