They will have sophisticated detection devices -- for example, for biological weapons that can take samples and analyze them rapidly to determine their identity, whether Iraq, for example is producing anthrax at a vaccine plant.
They will have more sophisticated satellite surveillance, including commercial satellite systems that are less sensitive. They will, perhaps, have airborne aerial surveillance, such as helicopters or even the Predator-type unmanned aerial vehicles,
which could pose privacy concerns for many people.
Source: thinkexist.com