When it comes to using the glass half full/half empty analogy to project their 2013 fortunes, Class I chief executive officers would say the glass is just barely above the half-full level. That's the general vibe I got from each CEO, who last month provided emailed responses to three questions I posed to them about their outlook on 2013. Collectively, they're just a smidgen on the optimistic side about next year's business prospects. To learn why, follow this link to read an article I wrote for our December issue, which traditionally includes a cover story on the outlook for the coming year in both the freight- and passenger-rail realms.