Article from just this week.
A trove of documents released this week, reportedly obtained through a cyberattack on Israeli military intelligence servers, appears to confirm long-speculated claims about Israel’s “Samson Option”—a last-resort nuclear strategy to destroy the world if Israeli existence is threatened.
vtforeignpolicy.com
And a quote from 2003, way before this latest dust-up:
"In 2003, a military historian,
Martin van Creveld, thought that the
Second Intifada then in progress threatened Israel's existence.
[37] Van Creveld was quoted in David Hirst's
The Gun and the Olive Branch (2003) as saying:
However, according to
Aluf Yitzhak Yaakov, who was the mastermind behind the "Samson Option",
[39] it was unlikely Israel could have even targeted Europe,[
citation needed] as Israel did not yet have other measures like bombs or missiles to carry the nuclear payload."
(They have that technology now.)
So, I took the quote and did some research. Here is a part of the interview. Note how this is also tied to the current Gaza conflict - they planned to push them out long ago and the details in the interview are quite current. Again, this was in 2003.