Demandthatthegovernmentadmitit.Ifenoughpeopledemandit,theyWILLfindawaytoexplainthebase,oratleastexplainwhytheymustkeepitsecret.
What's a sentence that uses these characters?
Demand that the government admit it. If enough people demand it, they WILL find a way to explain the base, or at least explain why they must keep it secret.