I agree. A hygrogen distribution network would make a good strategic (aka terrorist) target as well. The only way it is conceivable replacement for internal combustion is if fusion (hot fusion) reactor research is ultimately successful. Producing hydrogen from other fossil fuels is just as pollutive, it just moves the pollution to areas with a lower tax base. Wind, hydroelectric, and solar could never produce the energy required to get sufficient hydrogen from hydrolosis and fission has the worst by products of all.