Doug Jones is a rocket engineer (aka plumber) with XCOR Aerospace in Mojave California, and is currently working on rocket planes for the Rocket Racing League (not to be confused with the Justice League).   He has been known to threaten public safety by leaping out of perfectly good airplanes, driving taxicabs in a reckless manner, and performing socially unacceptable standup comedy.   He will present videos and commentary on the Xprize Cup event recently held in Las Cruces, New Mexico, concentrating on the exploits of the EZ-Rocket airplane.