There are some terrifying points which I think it’s crucial for all to know about.
1. Designing the warhead is easier than Enrichment part in term of producing Nuclear weapons.
2. There are currently 400 reactors working around the world which all produce plutonium (Nuclear weapons ingredient).
3. Information reported to the International Atomic Energy Agency (IAEA) shows "a persistent problem with the illicit trafficking in nuclear and other radioactive materials, thefts, losses and other unauthorized activities".
Past 15 years there were close to 400 cases of Uranium and radioactive sources lost in the world. They’d stolen them from hospitals, reactors, labs, universities, storage places.
A nuclear and radiation accident is defined by the International Atomic Energy Agency as "an event that has led to significant consequences to people, the environment or the facility.
4. Some former East German dissidents claim that the Stasi used X-ray equipment to induce cancer in political prisoners.
Similarly, some anti-Castro activists claim that the Cuban secret police sometimes used radioactive isotopes to induce cancer in "adversaries they wished to destroy with as little notice as possible". In 1997, the Cuban expatriate columnist Carlos Alberto Montaner called this method "the Bulgarian Treatment", after its alleged use by the Bulgarian secret police.
5. Two well known cases exist. In Germany, a man attempted to murder a woman with plutonium. In 2006, former KGB officer Alexander Litvinenko was killed in London by persons unknown (as of 2006) using the short-lived alpha emitter polonium-210.
6. In the early 20th century a series of "medical" products which contained radioactive elements were marketed to the general public. These are included in this discussion of nuclear/radioactive crime because the sale and production of these products is now covered by criminal law.