Actually, they're for some years afterwards. You said that NASA 'can not' admit spaceflight is dangerous.

If you had said 'NASA didn't admit space flight is dangerous before the Columbia accident' - I'd partially agree.

You fail to comment on the fact that several senior NASA managers often state, in reply to media questions, that the safest thing to do is to not fly at all.

NASA can, and does admit, and indeed publicly states that spaceflight is hard, it is risky, it is dangerous. Saying they don't is fundamentally wrong. Fact.

Doug