The Ken Burns documentary Unforgivable Blackness: The Rise and Fall of Jack Johnson will air tonight and tomorrow night on PBS. It is four hours long. This information was given incorrectly in Gregory Kane's column in Saturday's editions.
The name of an official with Life-Like Products, whose Baltimore warehouse burned Friday, was reported incorrectly in Saturday's editions. His name is Herb Burk.
An article in yesterday's editions on the transportation by rail of toxic chemicals incorrectly identified Dennis Schrader. He is director of the Governor's Office of Homeland Security.
The Sun regrets the errors.