It will include the final development, testing and verifications necessary to allow crewed demonstration flights to the space station.

ENGADGET: NASA awards Boeing, SpaceX and Sierra Nevada $30 million in contracts

Although technological advances may theoretically permit other effective means of testing the reliability and safety of our stockpile, the demonstration of such capability is still years down the road.

CENTERFORSECURITYPOLICY: Center for Security Policy | End Game: More Reasons Why The Clinton Administration Should Stop Trying To Conclude A Nuclear Test Ban Treaty