Watch FBI director Robert S. Mueller III discuss current challenges to U.S. security and international efforts to combat a changing terrorist threat.

Listen to FBI director Robert S. Mueller III discuss current challenges to U.S. security and international efforts to combat a changing terrorist threat.

Director of FBI, Robert Mueller discusses terrorism and homeland security.

Dennis Treece, Massachusetts Port Authority's director of coprporate security, discusses his efforts to harness technological innovation help improve security at air and sea ports.

Listen to Stephen E. Flynn, the Council's Jeane J. Kirkpatrick senior fellow for national security studies, discuss America's infrastructure vulnerability and its homeland security implications as part of CFR's State and Local Officials Conference Call Series.

Learn more about CFR's State and Local Officials Initiative.

Months before even the first primary vote is cast, the 2008 U.S. presidential campaign is fulfilling expectations as a major contest over foreign policy.

Two journalist reports first published in The Independent newspaper in the UK and the Philadelphia Inquirer in the US on the proliferation of mercenary forces in Iraq and elsewhere with a “licence to kill”. The Independent’s report says that the immunity enjoyed by civilian security contractors in Iraq is generating a daily series of “legal” murders of Iraqis. The Philadelphia Inquirers report argues that the increasing use of mercenary forces is on the verge of threatening US civil liberties in the name of protecting homeland security.

Two journalist reports first published in The Independent newspaper in the UK and the Philadelphia Inquirer in the US on the proliferation of mercenary forces in Iraq and elsewhere with a “license to kill”. The Independent’s report says that the immunity enjoyed by civilian security contractors in Iraq is generating a daily series of “legal” murders of Iraqis. The Philadelphia Inquirers report argues that the increasing use of mercenary forces is on the verge of threatening US civil liberties in the name of protecting homeland security.

In this Foreign Affairs-sponsored call, Al-Qaeda Strikes Back author Bruce Riedel argues that al-Qaeda is trying to lure the United States into a war with Iran and that Osama Bin Laden's group now has more bases, more partners, and more followers today than it did on the eve of 9/11.

Rising demand stands to increase the strain on the already taxed U.S. power grid. Without intervention, the system could become even more susceptible to terrorist attacks and acts of nature.

Backgrounder: Experts say more should be done to reduce risk on both passenger and freight rail.