The U.S. Army has a new tool in its arsenal that allows mobile troops to gather intelligence about the location and activities of adversaries by pinpointing the source of signal transmissions and intercepting communications. The system will replace legacy electronic warfare systems that were developed more than 30 years ago, and it has already been deployed in Afghanistan in support of operation Enduring Freedom.

Greater urgencies in both conventional and asymmetrical warfare are accelerating the development and deployment of measurement and signature intelligence systems. This rapidly growing discipline is delving into more diverse sources of data, and experts are advancing ways of using it to help other intelligence sensor systems. Concurrently, laboratory researchers are seeking to develop a totally new family of sensor systems that can detect everyday energy emissions from artificial and organic sources.

The Central Intelligence Agency and the U.S. military are embarking on a path to combine their complementary assets in the war on terrorism. Both national security elements have been taking on each other's characteristics-the military is transforming its force along a common denominator of information, while the intelligence community increasingly is engaging in active, even paramilitary, operations in the field.

In the past year there has been spirited public debate about the future of the intelligence community. While this debate largely is rooted in the attacks of September 11, 2001, many of the issues currently being addressed go far beyond the war on terrorism. One of the central issues includes key aspects of the intelligence community's functions in an infocentric democracy that is transforming its military into a network-centric fighting force.

The U.S. Army is pushing to ensure that the people in charge of the latest tools in warfare are up to date in defending its information and computer networks. Personnel who are key to the service's transformation and its move to digitizing the force are being trained to install, configure, operate and maintain the latest communications systems and are learning to identify evolving threats to these systems.

The World Wide Web's commercial revolution is feeding new capabilities to Intelink, the intelligence community's independent intranet. As usage increases and information grows exponentially, Intelink is adapting Web tools to serve the increasingly complex needs of a secure network.

Members of the U.S. armed forces will gather this month to participate in a major joint integrating experiment that could change the way the nation engages adversaries in the near future. According to military leaders, the experiment is the culminating point for assessing how the United States can conduct rapid, decisive operations in this decade.

A voice-recognition protocol may be on the verge of widespread market acceptance. Developed by a consortium of major telecommunications and technology firms, the standard creates a set of programming rules that can be easily incorporated into existing telephone and wireless networks.

A new type of defensive software protects computer networks by actively identifying reconnaissance probes and blocking subsequent attacks. The program operates in front of a firewall by marking all incoming scans and probes. The mark consists of false data about servers and other applications. Any attempts to penetrate the system using the distorted information is treated as an attack and automatically stopped.

U.S. civilian emergency management and law enforcement agencies are becoming increasingly capable of interoperating with the U.S. Defense Department. By enhancing communications and computer networking systems, organizations are readying themselves for flexible multiagency and multiservice joint operations in the event of a natural or man-made disaster.