People look at imported second-hand cars at a market in the Siberian city of Krasnoyarsk December 21, 2008. Russian riot police detained at least 100 people on Sunday protesting against government measures linked to the economic crisis, a crackdown that highlighted official sensitivity to growing hardship. Protests took place across Russia against car import tariffs, which are being raised to prop up car producers and discourage Russians from buying second-hand vehicles. REUTERS/Ilya Naymushin (RUSSIA)