In the limit …

… it is a distinction without a difference.

Operation Plumbbob - John test. LAS VEGAS, NV. Test of a AIR-2A Genie nuclear air-to-air rocket. A plume of rocket smoke partially obscures the F-89 Scorpion at the instant of firing. This signaled the first time in aviation history that a live nuclear weapon was fired by a fighter aircraft at a target. (Photo credit: Wikipedia)

“There is a fine line between bravery and stupidity.” — Anonymous

“Bravery is just the determination to do a job that you know has to be done.” — Audie Murphy

Related source » Videographer had bottoms up view of nuclear blast, lives to tell tale: 'via Blog this'
[This related source is recommended in its entirety.]

“George Yoshitake, Don Luttrell, and four other officers stood directly underneath an exploding nuclear warhead 55 years ago -- and lived to tell their tale. […] There they waited for what they called the "genie shot". "I never really gave it too much thought," Yoshitake said when asked if he was fearful of the explosion. "When you’re young, you think you’re invincible and nothing is going to happen to you" […] The five men huddled together on that clear July day looking up at the open Nevada sky, with Yoshitake filming as two F-89 Scorpion fighter jets fired an air rocket. "You could see the rocket streaking across the sky with a big white streak behind it," Luttrell recalled. "The first thing you saw was a brilliant flash and then there was a wave of heat followed by the sonic boom which was quite loud". […] Today, 55 years later, the seemingly safe operation may have had some serious side effects: all six members of the group have had cancer, with four dying of it, according to Yoshitake and Luttrell.”
— Mary Quinn O'Connor, July 27, 2012 (FoxNews.com)

 Five men at atomic ground zero

 Uploaded by atomcentral on Nov 3, 2011

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Back in the day, the long-term side effects of radiation exposure were not well understood. But even then, I wouldn't have volunteered to be a "guinea pig".

Today, you couldn't pay me enough. Thursday's not good for me either.

How about never? Does never work for you?

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