In one of many scoops for The Times, he revealed how the tobacco industry had kept secret its own research showing that nicotine was harmful and addictive.
He delved into numerous scientific fields — stem-cell research, genetic modification of food and DNA privacy among them — and sought to pinpoint the dangers.
A co-conspirator, he became an early witness for the government, which helped lead to the indictment of the burglars and linked them with the White House.
In 1953, he represented defendants in the Baton Rouge bus boycott, a model for later activism, after returning from World War II as a wounded veteran of D-Day.
She reported on conflicts around the world and for a time was the only American
broadcast journalist reporting from Baghdad during the U.S. “shock and awe”
bombing campaign in 2003.
Ms. Schroeder, who had a long career in the House, helped steer passage of legislation on family leave, pregnancy discrimination and other progressive causes.