He said he decided to break his silence after watching a "CNN Presents" documentary, "Shoot to Kill, " about the days after Katrina hit the Gulf Coast on August 29, 2005.

CNN: STORY HIGHLIGHTS

According to the CDC, it takes less than a minute for E. coli to be inactivated if chlorine levels are adequate, about 16 minutes to control Hepatitis A virus, about 45 minutes to kill off the Giardia parasite and over 10 days for a Crypto parasite.

CNN: Yuck! What's in your pool water

So if I am going through a disease or treatment that may kill me, I want to use my last days wisely.

FORBES: Are You Ready For The End Of Life?

So any mechanism that acts to suppress that, i.e. warm cloudy days - or hot air - will also kill them.

BBC: Ice blades threaten Europa landing

Braving grizzly bears and subzero temperatures, he searches the snow-covered wilderness for days before finally finding his quarry and making his kill, one of only four permit-holders to do so.

ECONOMIST: Buffalo in America

When Raburn told state officials that a 3% gross receipts tax on aircraft sales would kill any relocation deal, the legislature repealed the law in six days.

FORBES: Ready for Takeoff

She said they expected to see a decline in the number of cases in the next five to six days as sixteen cooling towers in the city had been treated with chemicals to kill the bacteria.

BBC: Edinburgh Legionnaires' disease cases rise further

At Cook It Raw, for a few days of freedom, they scrape lichen off of trees, forage for greens, kill their meat.

WSJ: Collaboration: Master Chefs Gone Wild | Off Duty Spring 50

He refused to let the job kill him either, delegating where he could and, in the long pauses of his working days, writing boyish love-letters to his wife.

ECONOMIST: Ronald Reagan

Just a few days ago, the hedge fund industry won a behind-the-scenes war to kill a bill that would have plugged a loophole that funnels billions of dollars into the pockets of some of the highest-paid people in America.

CNN: Edwards' October 13, 2007, speech on restoring democracy