I must be scrambled today because I cannot find it, he "contributed" to their getting the bomb but they also had a lot of help so I overstated his importance. I

I must be scrambled today because I cannot find it, he "contributed" to their getting the bomb but they also had a lot of help so I overstated his importance. I'll try getting back to you later, it might've been in a biography of his, 'Sun in a Bottle', or one of his interviews where he talks about some meeting with Chinese scientists. Apologies.