Rumored reason for the stock market plunge of 5/6/10, whose effect is seen in this puzzle's theme answers

Question:

Length:

Similar Crossword Questions:

HBO's "Inside the __" (and hidden theme in this puzzle's four longest answers)
Surplus integral to this puzzle's theme answers
Title of a crossword with theme answers like OVERHAND KNOT, BUTTERFLY EFFECT, and CRAWL SPACE
Some film credits, and the idea behind the eight theme answers in this puzzle
Write in any of this puzzle's eight theme answers?
"Something you would cheat on if you knew you wouldn't get caught." "___" (also, the source of this puzzle's theme answers)
Supplements added to each of this puzzle's theme answers
Reverend whose name is linked to terms like "Pazz and Jop," and this puzzle's theme answers
Structure of this puzzle's theme, hidden in five answers
___ to school . . . or a hint to the puzzle theme suggested by the ends of five answers
Letters for the names "buried" in this puzzle's theme answers
Feature of this puzzle's theme answers?
Environmental slogan, or a hint to this puzzle's theme answers
Shade from the sun that's inserted in this puzzle's theme answers
Weather Channel feature (it's the puzzle theme found in a quintet of answers)
Easy, and what this puzzle's theme answers literally are
Classic breakup line, and a hint to the formation of this puzzle's theme answers
Rebelliously, perhaps (and a hint to this puzzle's four theme answers)
They swing up and down in this puzzle's theme answers
"Home work" letters that appear at both ends of this puzzle's theme answers
Each of the titles in this puzzle's theme answers, e.g.
Element of surprise in this puzzle's theme answers
Second letters of this puzzle's five theme answers (seen in order)
Rhyme runaway, and how this puzzle's theme answers are formed?
Wise guys featured in this puzzle's theme answers