21. We must also ensure that the government is prepared to mitigate the impact of radiological weapons . 22. Radiological weapons , tested but never deployed, would have made the oil fields uninhabitable without destroying them.23. Chemical, biological and radiological weapons are grouped with nuclear devices as " weapons of mass destruction ." 24. Tenet said, and the terrorist organization also has shown an interest in chemical, nuclear and radiological weapons . 25. A radiological weapon is a so-called " dirty bomb, " which uses traditional explosives to disperse radioactivity. 26. It is feared that a terrorist group could detonate a dirty bomb, a type of radiological weapon . 27. A radiological weapon has never been deployed. 28. They call that a radiological weapon . 29. Radiation or radiological weapons , sometimes known as " dirty nukes, " are the poor cousins of nuclear arms. 30. What is striking, he said, is that the United States would consider radiological weapons to protect the oil.