PRB_Ohio (651719) writes "The US quit making Plutonium in 1988 and NASA needs it for power systems for deep space probes — where sunlight is not strong enough to use solar panels.
Apparently, the US has been buying plutonium from Russia since 1992 — nice way to keep the stuff from bad guys — just buy it and ship it off planet... works for me." Link to Original Source
Riches: A gift from Heaven signifying, "This is my beloved son, in whom I
am well pleased."
-- John D. Rockefeller, (slander by Ambrose Bierce)