"…as US experiences hunting Scuds in the Gulf War showed, it is almost impossible to locate and destroy a small mobile system that is covertly deployed. In fact, the Gulf War intelligence community never could furnish reliable information on the number and location of Iraq's Scud launchers. This forced an intensive anti-Scud campaign that seriously reduced the number of Scud firings, but never totally ended them. UAVs should be even harder to find than mobile Scuds were, given their smaller size and reduced maintenance and support requirements."