1.   Indeed, in the two months since the Monju accident, delays have been announced in two other key pieces of the plutonium program.

2.   Japan is not likely to pull the plug on the plutonium energy program outright.

3.   The end of the plutonium program would be mixed news for groups concerned with proliferation.

4.   They have a vested interest in keeping commercial plutonium programs going, including plutonium-extraction plants working on contract for other nations.

5.   Still, the basic plutonium program is moving ahead.

6.   Therefore, the Greenpeace activists refused to deliver the letter, which urged the Japanese government to halt all nuclear shipments and stop its plutonium production program.