Railroad operator Kansas City Southern (KSU) missed analysts' forecasts, in part due to higher taxes in Mexico. But the company reported rising shipping volumes and maintained its outlook for full-year revenue and volume growth in the mid-single digits. Shares were up 3% to 79.43 intraday. "Given a persistently sluggish U.S. economy and the impact of this summer's drought on the nation's grain harvest, KCS' solid third-quarter operating results