Ultra High-Speed Travel Proposed in California

Imagine being able to travel from San Francisco to Los Angeles in about 30 minutes - in half the time that it now takes to fly the nearly 650-kilometer distance. That is the idea behind the 'Hyperloop,' announced Monday by entrepreneur Elon Musk - the visionary behind the online payment service PayPal, electric Tesla cars and SpaceX, the private space program that successfully sent a payload to the International Space Station.