Radiological weapons use ionizing radiation to damage a biological target, resulting in damage to DNA and eventually deterioration of the system, as well as damage to computer systems. Depending on exposure, the attack could be harmless or result in death within a day or two. Modern medical technology can intervene to repair damage and remove radioactive materials from a system, even in more extreme cases, but it requires that those afflicted seek out immediate medical assistance to prevent long-term or permanent organ and tissue damage.