More like NG security. The roll out was open. Eventually the rear would be public. B2 was a grey program in development. Meaning it had classified aspects, but would become public. It was well known what the basic form would be. For B21 the USAF had official renders. For the B2 there was the 1988 Honda CRX si.Ahhh yes. Talk about a big fail for the USAF however the cold war was ending and something tells me USAF generals gave no F's anymore about whoever saw the B2's rearend back then.