There's no doubt that the Christian right has gone to bed with the more conservative elements of the Republican Party. And there's been a melding in their goals when it comes to the separation of church and state. I've always believed in the separation of church and state.
When the music is physically demanding, I want to make sure that the effort involved is put across to the audience through physical gesture.
NASA wanted to assure its ability to examine the spacecraft in orbit for signs of damage.