http://freeinternetpress.com/story/AntiPutin-Protest-Draws-Largest-Crowd-Since-1991-Gorbachev-Urges-Putin-To-Step-Down-33219.htmlA stage at the end of the 700-meter avenue featured placards reading “Russia will be free” and “This election Is a farce.” Heavy police cordons encircled the participants, who stood within metal barriers, and a police helicopter hovered overhead.Alexei Navalny, a corrup…