This is good news because we have a reasonably good idea of how much plutonium they have made , '' said Siegfried S. Hecker , the former chief of the Los Alamos National Laboratory and now a visiting professor at Stanford University .
Siegfried S. Hecker /business/person/company Stanford University
DT VBZ JJ NN IN PRP VBP DT RB JJ NN IN WRB JJ NN PRP VBP VBN , '' VBD NNP NNP NNP , DT JJ NN IN DT NNP NNP NNP NNP CC RB DT VBG NN IN NNP NNP .
Siegfried S. Hecker
PERSON
Stanford University
ORGANIZATION
/business/person/company