Do nuclear weapons make the world a safer place? As Japan marks 80 years since the US detonated two atomic bombs over Hiroshima and Nagasaki, its leaders are renewing their call for global disarmament.
Japan’s warning at Hiroshima ceremony

Glossary
Radiation sickness - Damage caused to the body after it receives a high dose of radiation in a short amount of time. It can be life-threatening.
Nuclear weapons - A bomb or other weapon that uses nuclear energy to cause a big explosion.
Go Rogue - To start behaving in a way that is not normal or expected, especially by leaving your group and doing something dangerous.
Arsenal - Collection of weapons.
Sabre-rattling - Literally, making noise with your sword to intimidate your opponent, but it has come to mean making verbal threats or taking actions to achieve the same result.
Campaign for Nuclear Disarmament (CND) - An organisation that advocates unilateral nuclear disarmament by the United Kingdom, international nuclear disarmament and tighter international arms regulation through agreements such as the Nuclear Non-Proliferation Treaty.