8. Sinking of the Titanic in 1912 $150 Million.

7. Metro Link Train Crash in 2008 $500 Million.

6. B-2 Bomber Crash in 2008 $1.4 Billion.

5. Exxon Valdez Oil Spill in 1989 $2.5 Billion

4. Challanger Explosion in 1986 $5.5 Billion

3. Space Shuttle Columbia Explosion $13 Billion

2. Chernobyl Nuclear Melt Down $200 Billion

1. Election of Barack Obama in 2008 $800 Billion in his first two months in office with an expected goal of $4 Trillion in the first year.