http://www.theobamanews.com/ObamaNews/obama-talks-new-and-expanded-volunteerism/ Democrat Barack Obama on Wednesday showcased plans to encourage volunteerism by Americans, his latest push to woo conservative voters also sought by rival John McCain. The Republican, meanwhile, was traveling in South America promoting politically risky free trade at a time when Americans are grappling with the country's economic woes. Thu, 03 Jul 2008 12:58:32 CDT en