I-95, south of Richmond, was shut down early Tuesday morning after a truck carrying over 100 canisters of oxygen and argon crashed and overturned.  There was concern that the canisters may leak gases and turn into projectiles.  The interstate was reopened around 9am.  Carl Vandevender, a 52-year-old Richmond man, was taken to the hospital for minor injuries and police have charged him with reckless driving.