re: #257 The Very Reverend Battleaxe of Knowledge
Fizzles, not failures. Very distinct difference. They did detonate a nuclear device, but it was much less than what they hoped it would be, though it was still several kilotons, with some estimates putting at least one of the detonations approaching Hiroshima levels - 16kt.
Added:
There were 3 separate tests conducted - one was a complete fizzle. One was what appears to be a success with a low order detonation. The third and most recent test was in the 8-16kt range.