For accuracy, the Winter Olympics will be in Sochi, not Moscow --
"Sochi (Russian: Со́чи, IPA: [ˈsot͡ɕɪ]) is a city in Krasnodar Krai, Russia, situated on the Black Sea coast near the border between Georgia/Abkhazia and Russia. Greater Sochi sprawls for 145 kilometers (90 mi) along the shores of the Black Sea near the Caucasus Mountains. According to the 2010 Census, the city had a permanent population of 343,334;[5] up from 328,809 recorded in the 2002 Census,[9] making it Russia's largest resort city."
As it's in Russia, presumably same considerations apply in all respects; tho the thread title does appear inaccurate: presumably chose by OP cos who knows where Sochi is?!