CEO confidence in the U.S. economy is at an all-time low, according to The Conference Board's latest quarterly report. The survey of about 100 business leaders in a wide range of industries declined to its lowest level since The Conference Board began the survey in the second quarter of 1976. Twenty-four of the 100 executives surveyed said they felt confident about the current economic situation in the fourth quarter of 2008, down from 40 in the third quarter.