Is Raiders Stadium Roof Proposal Over The Top?

Planners for a new, largely privately financed Oakland Raiders stadium are considering something even more ambitious than the towering seats of Mount Davis - a retractable or transparent roof. Sources involved in putting a proposal together tell us that, given the $900 million to $1.2 billion cost of a new stadium, they're aiming for a building that can host not just sporting events but also concerts, conventions and other functions that require dry weather. The clock is ticking down on Quan's promise to have a new Raiders stadium deal worked out by summer's end. Having bailed on his run for secretary of state, suspended state Sen.