It sounds like helium is still presenting a challenge: > ...changes in the truck's speed produced turbulence in the liquid helium, making measurements of its p

It sounds like helium is still presenting a challenge: > ...changes in the truck's speed produced turbulence in the liquid helium, making measurements of its presence unreliable. Levels had dropped from about 75 percent of maximum to 30 percent by the time the system was reconnected, suggesting that liquid helium presents the key limiting factor in shipping. This was after just a 4km stint around CERN campus.