http://www.theverge.com/2014/5/13/5714462/russia-will-cut-off-us-access-to-the-international-space-station-over
Well, NASA decided not to let Russia stop Americans from reaching the space station. Today, they announced that they would make contracts with Boeing and SpaceX to transport American astronauts to and from the space shuttle by 2017. The contracts require that each company conducts a test flight with an astronaut on it to prove their spacecraft can reach and dock with the space station successfully. Then, each company will run two to six missions to the space station.
NASA says under this new partnership, they can now focus more of their resources on research to allow humans to land on Mars!
http://www.nasa.gov/press/2014/september/nasa-chooses-american-companies-to-transport-us-astronauts-to-international/index.html