A "dirty bomb," or radiological dispersal device, combines conventional explosives with radioactive materials. Its primary purpose is to spread contamination rather than cause a large explosion. When detonated, it can release harmful radiation into the environment, posing health risks to people nearby. While dirty bombs are not as destructive as nuclear weapons, they can create panic and disrupt communities. The radioactive materials used can vary, and their effects depend on factors like the type of radiation and the amount released. Authorities focus on prevention and response strategies to mitigate the potential impact of such devices.