Exporting nuclear technology is lucrative, but without strict safeguards, buyers could divert it into bomb programs. Why is Saudi Arabia shopping for nuclear power, and should the US provide it?
Nuclear power was a cornerstone of Japan's energy strategy for decades, until the Fukushima disaster. The current government wants to keep some nuclear reactors open, but has lost public support.
The policy failures behind the upbeat headlines.
Centrifuges, plutonium, uranium enrichment – what's the nuclear science behind the deal to curb Iran's atomic weapons program.