I refuse to believe that the US gave up a hugely important capability with the death of the Blackbird. Satellites are very good but very predictable..
Lets face the fact that SR-71 first flew in 1959 for heavens sake.
It took roughly 15 years for the Nighthawk and the Spirit to become public. SR71 went in 1989..........
But what the hell do I know.
WWW