Since its inception in 1972, BART has gone from a sleek transportation system of the future to one with overcrowded trains, aging infrastructure and long-overdue repairs. This November, voters in Alameda, Contra Costa and San Francisco counties will decide on Measure RR, which proposes $3.5 billion in bonds to address some of the aging system's problems. BART says the funds are needed to keep the system safe and reliable. Opponents of the measure say the agency has a history of financial mismanagement. In this hour, we'll hear from supporters and opponents of the measure.