Indeed, nothing about it being secret appears anywhere in the blog posting, prosaic title is:
ENGINEERING REVIEW BOARD CONCLUDES REVIEW OF HTV-2 SECOND TEST FLIGHT
And it's quite cool; of particular note is their analysis that the improvements prompted by the previous first test allowed the flight control system to keep it stable for a while as the skin was peeling off and creating nasty aerodynamic effects. And I gather they have some real world to provide the materials science types.
ENGINEERING REVIEW BOARD CONCLUDES REVIEW OF HTV-2 SECOND TEST FLIGHT
And it's quite cool; of particular note is their analysis that the improvements prompted by the previous first test allowed the flight control system to keep it stable for a while as the skin was peeling off and creating nasty aerodynamic effects. And I gather they have some real world to provide the materials science types.