The U.S. Supreme Court on Monday dealt a major blow to death penalty opponents, upholding the use of a controversial drug as part of a three-drug execution cocktail. The vote was 5-to-4, with unusually passionate and sometimes bitter opinions from the majority and dissenting justices.
The U.S. Supreme Court ruled Monday that the Environmental Protection Agency made a mistake when it told electric power plants to reduce mercury emissions. The high court says the EPA should first have considered how much it would cost power plants to do that.
The decision comes too late for most power companies, but it could affect future EPA regulations.
Mercury in the air is a health risk. When you burn coal or oil, you create airborne mercury that can end up in fish we eat and cause serious health problems.
It's T minus four days until exam day, and Travis Driscoll is practically living at his desk.
"Each day, I'm easily here for five hours," he says. "I haven't done much of anything else but studying for the last two months."
Driscoll is one of 13,000 medical school applicants across the U.S. taking the new Medical College Admissions Test, or MCAT. He's got stacks of science books on his desk to help him prepare, and a rainbow of biochemistry charts pasted to the walls: glycolysis, citric acid cycle, electron transport chain, mitosis, meiosis and DNA replication.