I'm currently watching The Omega Directive, and a comment Janeway makes focused my attention:
The question I'm asking is this: Do Federation citizens/officials not in Starfleet know of the Omega Molecule, or is this another example of Starfleet keeping things secret, like the interphase cloaking device?
You've all seen this symbol. Omega. The last letter of the Greek alphabet...chosen by Starfleet to represent a threat not only to the Federation, but to the entire galaxy. Only Starship Captains and Federation Flag Officers have been briefed on the nature of this threat. What you're about to hear doesn't go beyond these bulkheads... is that clear?
The question I'm asking is this: Do Federation citizens/officials not in Starfleet know of the Omega Molecule, or is this another example of Starfleet keeping things secret, like the interphase cloaking device?