Russia's opposition flounders as Putin changes constitution

Russia's opposition is denouncing this week's vote on President Vladimir Putin's constitutional reforms as a joke, pointing out that copies of the amended basic law are already on sale in Moscow bookshops.From liberal reformers to Communists, Kremlin critics say the vote -- which started last week and ends on Wednesday -- is a thinly veiled attempt to keep Putin, 67, in power for life.Russia's top opposition figure Alexei Navalny, who last summer rallied thousands against suspected voter fraud i