Oppenheimer Urged Jawaharlal Nehru To Bar Thorium Exports To US For Its N-Goals

J. Robert Oppenheimer, the American physicist called the "father of the atom bomb", had tried and failed to prevent then Indian Prime Minister Jawaharlal Nehru from supplying the US material -- especially thorium -- needed for a bomb far deadlier than his creation.

Oppenheimer’s appeal was conveyed in a phone call to the then Indian Ambassador to US, Vijaya Lakshmi Pandit, who reported it to her brother, Prime Minister Nehru, in a letter dated February 10, 1951, reproduced in a 2014 book by her daughter Nayantara Sahgal.

It came amidst intense negotiations between the two countries over an India request for emergency food grains assistance that Pandit had conveyed to the Harry S. Truman administration just weeks before in December.

According to the Emergency Food Aid Ac signed by Truman in June 1951, India was promised 2 million tonnes of food grains but among the conditions attached was the continue supplies of "strategic materials”, which, a declassified “top secret” memo of the State Department from the time, said included “beryl, manganese, mica, and kyanite -- and initial shipments, heretofore prohibited, of monazite".

Monazite, a brown crystalline mineral consisting of a phosphate of cerium, lanthanum, other rare earth elements, and thorium, is found in abundance in India.

A contract was drawn up later in the year for “to cover shipment from India of 500 tons of monazite concentrate”. 

Oppenheimer’s plea with Nehru was specifically about thorium.

"Oppenheimer wants you (Nehru) to know that work of a most ‘horrible and deadly nature’ is being done on the atom bomb, that step by step America is ‘deliberately’ moving towards a war of annihilation,” Pandit had written in the letter to Nehru, according to Sahgal’s book.

"The recent promises given by Truman and Attlee regarding the atom have resulted in research for a weapon of the same deadly quality which will be kept secret and used INSTEAD of the atom. For this purpose more and more thorium is required and the US desires to stockpile all available thorium.

"Oppenheimer has reason to believe an approach will be made very soon very soon to India directly and through Britain. In fact, he believes that one reason why the Indian request for wheat has been so readily sponsored by the State Department is because of what they themselves require from India. The argument used for obtaining thorium will be that it is needed for humanitarian purposes  According to Oppenheimer, no such purpose can at present be achieved.

"Oppenheimer begs the government of India not to sell any thorium to the US voluntarily or through pressure,” the letter says.

Declassified US State Department papers from the time -- ranging in confidentiality from “SECRET” to “TOP SECRET” -- show Nehru and his government tried very hard to keep this minerals, called “strategic materials”, off the table, especially those that could be used to produce a nuclear bomb.

But they were thwarted by a mix of worsening food crisis at home and an adamant US government and Congress, which had to clear it.

In a telegram to the state department marked “SECRET”, the then US Ambassador to India, Loy Wesley Henderson wrote, "Saw Bajpai (Girijia Shankar Bajpai, the top civil servant in the Foreign Ministry as Secretary General). this morning (at) my request. Told him I had given further consideration to information he gave me yesterday afternoon (May 7) and had become concerned lest inclusion by Nehru in his coming statement (in parliament) of reference to GOI (government of India) unwillingness (to) furnish materials relating to manufacture atomic weapons might not be regarded as uncalled-for criticism US atomic weapon policies. I said I hoped that (the) Prime Minister cld be induced drop this reference."

Bajpai told the US Ambassador, according to the Henderson memo, “decision (taken by) Prime Minister in consultation with members (of) Cabinet and apparently Cabinet felt more strongly on this point than any other".

Yet the Nehru government went with it and allowed the export of these "strategic materials", including, for the first time, monazite, the thorium laden mineral.

Oppenheimer’s contacts with India, clearly, go much further than his two recitations of a line from Bhagavad Gita -- "Now I am become death, the destroyer of worlds" -- in Christopher Nolan’s "Oppenheimer", a film about the man who led the world to its first atomic bomb, whose use in 1945 ended the Second World War, and and then spent the rest of his like campaigning against the ultimate weapon of destruction he had helped create.

The film is based on the Pulitzer Prize-winning book "American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer" by Kai Bird and the late Martin J. Sherwin.

True to the book, the film tracks Oppenheimer’s journey through the academic world straddling two three countries across two continents to his appointment to head the Manhattan Project which unfolded over three years ending 1945 at a secret facility created by the US government in Los Alamos, New Mexico.

Oppenheimer became disillusioned about his creation and turned into an avid campaigner against nuclear bomb, which cost him his equity with the US government and he was stripped of his top security clearance at  a rigged hearing that was recreated with remarkable clarity and simplicity by Nolan.

Exonerated for his loyalty to the country but deprived of his security clearance, Oppenheimer was offered citizenship by Nehru in 1952, according to many published accounts.

But he did not take it, displaying perhaps the same independent spirit.