That depends on whether or not 2017 is foreseeable (http://en.wikipedia.org/wiki/Commercial_Crew_Development). Since 2012 the US has had a craft that is capable of taking people to and from the ISS, NASA just wants to do an excessive amount of testing and incremental improvements before we trust it (http://www.newscientist.com/blogs/shortsharpscience/2012/05/...).