Photo by aimster215In today’s Roll Call, reporter Emily Yehle observes the first anniversary of the Capitol Visitor Center, the 580,000-square-foot foyer to the legislative branch of the United States of America. Opened a year ago to the tune of $621 million, the Capitol expansion has quietly changed the way that visitors interact with the Congress — transforming it in a way that would prompt even a heartless Hill suit to reflect on what a…