US manned space flight in doubt 40 years after moon walk

US manned space flight in doubt 40 years after moon walk: "With a space exploration budget of six billion dollars in 2009, Senator Bill Nelson of Florida said: 'NASA simply can't do the job it's been given -- the president's goal of being on the moon by 2020.'

Nelson, a former astronaut, deplored that between 2020 and 2015 the United States will have no way of transporting its astronauts to the ISS except aboard Russian Soyuz space craft."