JIM LEHRER: In other news today, Wall Street lost some of Monday's big gains. The Dow Jones Industrial Average closed down 115 points at 7,660. The Nasdaq fell 38 points to close at 1,517.
The government will stop issuing permits for mining coal on mountain tops, pending a new review; Lisa Jackson, head of the Environmental Protection Agency, made that announcement. It targets the practice of blasting mountain tops to get at coal and then dumping the waste into streams and wetlands. More than 100 permits could be affected.
The EPA has also issued a tentative finding that global warming is a threat to public health. It could be a first step toward regulating carbon dioxide and other greenhouse gases under the Clean Air Act. The draft finding now faces review at the White House. In the meantime, it could give new momentum to efforts in Congress to address climate change.
Older Americans who eat large amounts of red and processed meats have a new warning to digest. A new federal study underscores that they run a higher risk of death from heart disease and cancer. The study was the largest of its kind ever done. Researchers studied the eating habits of more than 500,000 middle-aged and elderly men and women over 10 years.