Do you know what the most often performed operation is in the United States? With heart disease being the number one killer in America, you might think it would be related to that, perhaps bypass surgery or angioplasty.It's cesarean section. In 1965, only 4.5 percent of children were delivered via c-section. Today, 31 percent are. That's a huge increase for a procedure that was once reserved to emergency situations. And as the Los Angeles Times notes, it has resulted in "an explosion in medical bills, an increase in complications -- and a reconsideration of the cesarean as a sometimes unnecessary...