Today at noon, Bryan Pennington, senior vice president of engineering and construction, hosted Transit Talk, our monthly Web chat.   Below is the transcript.  (12:00:29 PM) Bryan Pennington:Welcome to Transit Talk. This month our subject is the five light-rail lines we're building. All questions will be moderated. ...

  This Thursday, you'll have a chance to ask anything and everything you've ever wanted to know about the five light-rail lines METRO is building. The man in charge of building out those rail lines is Bryan Pennington, senior vice president of engineering and construction at METRO. Pennington's been at METRO three and a half ...