How do you assess a dramatic claim with no evidence attached?

Start by separating what was directly observed from what was supposedly said. In this case, the account is a retelling of a conversation, and readers have no way to check the speaker’s identity, role, or accuracy. That does not prove the story false, but it is nowhere near enough to treat it as fact.

Look for details that could be checked independently, such as a specific research project, time period, or public record. If those details aren’t available, I’d describe it as an unverified anecdote, not evidence of a secret program. And don’t try to identify or contact people based on a vague story.

The biology part needs careful wording too. Some insects can regenerate certain tissues, but that alone wouldn’t show that a particular moth was engineered or used in a government project. You’d need to know what species, what stage, and exactly what kind of regeneration was claimed.

A real biological phenomenon can make a story sound plausible without confirming the bigger story. I’d want independent observations or research, not just a striking detail in an anonymous account.

I wouldn’t pass it along with names or accusations attached. If someone has concrete records suggesting wrongdoing, they can preserve them and seek advice from a credible journalist or oversight channel. Otherwise, repeating the claim as a warning risks turning an uncheckable story into a rumor that harms real people.