FILE - In this file photograph taken Oct. 7, 2010, a CSX train rolls along the tracks passing another CSX train in Buffalo, N.Y. Higher rates are helping freight railroad CSX Corp. boost profits by 14... more 
FILE - In this file photograph taken Oct. 7, 2010, a CSX train rolls along the tracks passing another CSX train in Buffalo, N.Y. Higher rates are helping freight railroad CSX Corp. boost profits by 14 percent despite lower coal shipments. CSX said Tuesday, April 17, 2012 that it earned $449 million, or 43 cents per share, in the first quarter, up from $395 million, or 35 cents per share, a year ago. (AP Photo/David Duprey, file) less 
1 / 27
Associated Press | Photo By David Duprey, file
Tue, Apr 17, 2012 5:32 PM EDT