Kipchoge compares sub-two hour marathon to going to the moon

Running a marathon in less than two hours is like going to the moon.Those were the words of Kenyan athlete Eliud Kipchoge at a news conference in Vienna on Thursday (October 10).Ahead of his unofficial attempt on Saturday (October 12) to become the first runner to break the two-hour barrier.(SOUNDBITE) (English) KENYAN RUNNER, ELIUD KIPCHOGE, SAYING:"To run in Berlin and to run in Vienna are two different things. Berlin is running and breaking a world record. Vienna is running and making history