Opposition leader Alexey Navalny, speaks with riot police officers blocking the way during a massive protest rally against Prime Minister Vladimir Putin's rule in St. Petersburg, Russia, Saturday, Feb. 25, 2012. The poster reads: 'We will not be frighten". Several thousand Russians march in downtown St.Petersburg to demand an end to Putin's rule, casting a strong challenge to his bid to reclaim the presidency in March. (AP Photo/Dmitry Lovetsky)