They got him, not the movement. Alexei Navalny, who leads opposition against President Vladimir Putin, was arrested and sentenced to 30 days in jail as protests rocked Russia yesterday during celebrations for the anniversary of the 1990 end of Soviet rule. Tens of thousands demonstrated against corruption in Moscow and over 100 other cities, while police detained as many as 1,300. Navalny never joined the protests: He was arrested at home before they began, on charges of staging rallies illegally. He still plans to run for president next year.