How Much is a Celebrity Worth? Nonprofits Pay For Star Power

Politico reporter Ken Vogel discovered that the Clinton Foundation has collected as much as $11.7 million in speaker fees from nonprofits. Some argue that celebrity appearances create buzz and more donations for nonprofits, but critics say the high price tags don't produce worthwhile, measurable returns. Do big-name speakers add value to a charity's bottom line or are they just an "empty calorie high?"