Article Photos: Venezuela opposition concerned about armed groups



  Venezuela's President Hugo Chavez, top, waves to supporters during a campaign rally in Propatria neighborhood, Caracas, Venezuela, Sept. 17, 2012. Venezuela's presidential election is scheduled for Oct. 7. (AP Photo/Ariana Cubillos)

Venezuela's President Hugo Chavez, top, waves to supporters during a campaign rally in Propatria neighborhood, Caracas, Venezuela, Sept. 17, 2012. Venezuela's presidential election is scheduled for Oct. 7. (AP Photo/Ariana Cubillos)