Heart disease still the most likely killer

It may be America's No. 1 killer, but people aren't scared enough of heart disease, says a top U.S. research cardiologist. It's true that U.S. heart disease deaths overall are down. From 1993 to 2003, cardiovascular disease death rates dropped 22.1 percent. But more than 910,000 Americans still die of heart disease annually, according to the American Heart Association.