The Soviet Union collapsed more than 20 years ago, yet genuine democracy is still a stranger in most of the 15 former republics. Ukraine, where at least 25 people were killed on Tuesday, is just the latest bloody example. From President Vladimir Putin's hard-line rule in Russia to the 20-year reign of Alexander Lukashenko in Belarus to the assorted strongmen of Central Asia, many post-Soviet rulers consistently display a fondness for the old days, when opposition was something to be squashed, not tolerated.