Helium-3, also known as
astrofuel, is found in abundance in the Moon's soil. It is the most
efficient known source of power -- 99 percent of its energy can be
converted into electricity.

...using processes which we have not yet managed to develop.

There is a present use for it. Helium-3 would make for a cleaner thermonuclear
bomb. Perhaps if the Defense Department were to insist on using
Helium-3/Deuterium fusion bombs instead of Deuterium/Trintium fusion bombs,
this would create a powerful incentive to exploit the lunar resources. The
Helium-3/Deuterium reaction releases less free neutrons and leave less
radioactive residue in the process, environmentalist groups should be pleased.

Tom