Because it is Fantastical. Ask yourself, why does this article know the intricate details of a Mossad Operation? Why is this 'Mission Impossible' play-by-play being painted inside our brains?

1. To give the air of legitimacy
2. To send Comms

What are Comms? Embedded symbology/messages within articles, music, films, memes. Helps to have a lengthy narrative so you have more room to inject them.

Nuclear Weapons have been decoded to mean 'nation-ending blackmail evidence'. Knowing that symbolism, how does it paint the following:

“The scientists’ motivations were all different,” a source said. “Mossad found out what they deeply wanted in their lives and offered it to them.

The 'scientists' were most likely blackmailed themselves. They had family to take care of. Possible debts, etc. How was this known by Mossad? Deep Surveillance and the cooperation of other Clowns.

“There was an inner circle of scientists who knew more about the operation, and an outer circle who helped out but had less information.”

This is how Comms works. It is also the nature of Compartmentalized Ops.

After the explosion, the scientists responsible were spirited away to a safe location. The source added: “All of them are very safe today.”

This is a Promotional sentence. It is to tell others that if they cooperate in destroying blackmail evidence, they will be taken care of. "Very safe". They REALLY want to send that message.