If the alleged bribery attempt was limited to the one sales executive, I doubt the Justice Department would go after SW, assuming SW is cooperative with the Justice Department. If SW stonewalls or Justice determines there is a corporate culture fostering these practices, then Justice might take steps against SW.
And, to put things in perspective, General Electric recently settled charges that it violated the same law by paying $23 million.
http://www.law.com/jsp/article.jsp?id=1202463966930. Years ago, it paid $69 million for defrauding the Pentagon.
http://www.corpwatch.org/section.php?id=16. That hasn't stopped GE from selling lots of jet engines to the U.S. (and other products) and I don't suspect the latest action will either. Similarly, I don't think Justice will go after SW if the company plays ball.