While the primary "intent" is not to use DU as a radiological weapon, if the radiological effects are known and the use is continued then governments must take responsibility. In a worst case scenario the 10,000 or more guided bombs and missiles involved in the proposed "shock and awe" attack on Iraq could release as much as 1,500 tonnes of radioactive uranium oxide dust within a 48 hour period. The air would become a thick haze of dust with minute radiological particles, many of which would be inhaled into the deep lung or ingested. Over time, this contamination could create the same number of casualties as a full scale nuclear attack. The first symptoms for those who did not die immediately from the blast or fatal burns, would be a burning sensation in the throat and frequent nose bleeds. These may also be accompanied by flu-like symptoms within a few days. More severe exposure may result in severe respiratory problems, vomiting and internal bleeding. In March 2002, the Royal Society reported that severe uranium contamination may lead to death within a few days of its toxic effects on the renal system[7]. This may be compounded by radiation effects on the immune system.