Article Photos: WHY IT MATTERS: Issues at stake in election 7/31

  FILE - In this June 12, 2012, file photo an Amtrak commuter train moves through a crossing gate in Springfield, Ill., on its way to Chicago. From bridges to broadband, Americaâs infrastructure is supposed to be speeding along commerce, delivering us to work and piping energy and water into our homes and businesses. Romney shuns the idea that public-works spending is a good way to jumpstart the economy, saying decisions on worthy projects should be based on need and potential returns. He also wants to privatize Amtrak by ending federal subsidies for the money-losing passenger rail system. (AP Photo/Seth Perlman, File)