TV AND WEB RESTRICTIONS~**DIGITAL USE ONLY, NO BROADCAST USE WORLDWIDE, NO ACCESS AUSTRALIA BROADCASTER WEBSITES. NO ACCESS JAPAN. NO ACCESS ABC AMERICA, FOX, UNIVISION, TELEMUNDO, BBC AMERICA, NBC, OR THEIR DIGITAL/MOBILE PLATFORMS. NO ACCESS LOS ANGELES, CALIFORNIA MEDIA MARKET WEBSITES**<br/> <br />ROUGH CUT (NO REPORTER NARRATION)<br/> <br />Virgin Galactic founder Richard Branson said on Saturday (November 1) he was working with U.S. authorities to determine what caused a passenger spaceship being developed by his space tourism company to crash in California, killing one pilot and injuring the other.<br/> <br />Branson arrived in California to meet Virgin Galactic employees and officials from the National Transportation Safety Board, which he said would handle all work and official comment on the investigation.<br/> <br />He also said he was "determined" to learn from Friday's crash of SpaceShipTwo, which went down in pieces during a test flight in the Mojave Desert, 95 miles (150 km) north of Los An
