NEW YORK (Standard&Poor's) March 28, 2007--Norfolk Southern (BBB+/Stable/--) announced yesterday that its Board of Directors increased the number of shares authorized for repurchase from 50 million to 75 million and that it shortened the authorization period by five years. The program now extends until the end of 2010. Norfolk Southern has already repurchased about 27 million shares under the program through March 27, 2007, for a total of $1.2 billion. Standard&Poor's Ratings Services said the announcement has no impact on its rating or outlook on Norfolk Southern at this time. The company has said that the timing and volume of any purchases will be guided by management's assessment of market conditions and other factors. Standard&
