'Going to space shouldn't be taken for granted': spaceship pilot

One of the two pilots of the first manned flight to space from US soil since 2011, operated by Virgin Galactic, says that "going to space shouldn't be taken for granted", at an event at the Air and Space Museum. British tycoon Richard Branson, who heads the company, declares that he wants to wait for their "team to say they're 100% happy" before promising any flight to customers, at a cost of $250,000 per seat.