New technologies hold promise for improving airport security, but against growing threats, a holistic, “layered” approach is needed.

George Naccara, director of security at Boston's Logan Airport, discusses the myriad threats American airports face and some of the measures designed to keep them safe.

An “open skies” agreement between Europe and America could shake up the airline industry and usher in a wave of mergers.

Bill Roggio, a widely published journalist who authors the Fourth Rail blog, debates Kathy Gannon, author of I is for Infidel and a longtime AP correspondent, about whether Pakistan is doing all it should to secure its Afghan border.

New legislation seeks to increase oversight of the House panel at the center of the Dubai Ports controversy amid concerns that the bill could scare off foreign investment.

Backgrounder: The new Congress shares President Bush's reform approach but new legislation is by no means assured.

One year after the Dubai Ports World controversy, Congress is pushing legislation to reform the committee that reviews foreign investments in American companies. But some business groups think proposals for increased oversight go too far.

Carl Prine, an investigative reporter for the Pittsburgh Tribune-Review, says his recent report on rail security discovered glaring vulnerabilities that potentially endanger thousands of lives on a daily basis.

Pittsburgh Tribune-Review investigative reporter Carl Prine performs an audit of freight rail security and finds large stores of hazardous chemicals left completely unguarded in the heart of major cities.

Congressional Democrats, in power for the first time in twelve years, quickly passed homeland security measures long stymied by Republicans. Experts give mixed reviews to the proposals, and some Republicans complain about a lack of debate.

This International Crisis Group report examines the rise of militants in Pakistan's tribal areas.

Experts warn there is slim hope to control this area given its long history of resisting intervention.

Paul Ekman, professor emeritus of psychology at the University of California at San Francisco, explains Screening Passengers by Observational Techniques, or SPOT, a form of behavioral observation that could help secure U.S. airlines.