Cosmic Log - Missives launched in space debate

Cosmic Log - Missives launched in space debate: "Should America spend $3 billion a year to keep the shuttles flying? Should NASA be allowed to shut down the Constellation program, on which $10 billion or so has been spent already? Are there billions of dollars to spare for accelerating the development of a heavy-lift rocket? Will commercial ventures like United Launch Alliance and SpaceX be able to deliver on their promise to close America's spaceflight gap?"