Threats

US Adds Extra Ebola Screening on Flights from Liberia, Guinea and Sierra Leone

All passengers flying from Sierra Leone, Liberia and Guinea into the US will be required to enter the country through five major airports for additional screening. By Sarah Mimms

Threats

How 500,000 Iraqi Refugees Are Surviving Under the Shadow of ISIS

How northern Iraqi Kurdistan's displaced people are coping with war and want. By Alice Su

Policy

Obama Wants His Staff To Be More 'Hands On' in National Security Crises

From domestic politics to foreign policy, Obama and his aides frequently appear overtaken or overwhelmed by events. By James Oliphant

Science & Tech

Navy Picks Dell for Cloud Email Pilot Program

The Navy has tapped Dell to provide it with a Microsoft enterprise-as-a-service cloud email system for its reservists. By Bob Brewin

Threats

Iran Could Be Complying With the Interim Nuclear Deal

Depending on whom you ask, the country is taking steps to ensure transparency as international inspectors investigate. By Adam Chandler

Science & Tech

Mass Surveillance Distracts an Overwhelmed Intelligence Community, Snowden Says

Fugitive leaker Edward Snowden said surveilling extremists and following through on intelligence leads is a better counterterrorism tactic than mass spying. By Dustin Volz

Defense Systems

Air Force ups the ante on sense-and-avoid UAV technology

A $23.5 million contract awarded to DRA will fund improvements to a collision avoidance system that takes advantage of an unmanned aircraft’s existing sensors.

Science & Tech

Researchers Use 3D Printing To Create Bomb-Sniffing Dog Noses

Researchers are using 3D printing to make anatomically correct artificial noses modeled after a female Labrador retriever. By Rebecca Carroll

Threats

Beyond the Houthi Takeover of Yemen

Will the rise of a new power in Sana'a usher in an era of improved security for Yemen -- or will it bring the country to its knees? By Nasim al Sanani

Policy

Rick Perry Sharpens His National Security Edge Over GOP Rivals

The Texas governor recently made significant progress establishing his credentials in a surprising area: foreign policy. By David Frum

Business

State Department Clears Sale of 46,000 Tank Rounds for Iraq

The pending sale would bolster the Iraqi Army, which has been fighting Islamic State militants all year. By Marcus Weisgerber

Threats

Turkey Allows Iraqi Kurds To Join the Fight Against ISIS

The shift in policy—and alliances—underscores the importance of saving Kobani from the Islamic State. By Polly Mosendz

Threats

Executions Could Be Iraq's Real Challenge to Unity

The UN warns that the rising number of death sentences in the country's courts fuels sectarian violence—and empowers ISIS. By Allen McDuffee

Policy

Rand Paul and the Myth of American Isolationism

Over the last year, Sen. Paul has developed an approach patterned on the internationalist thinking that influenced foreign policy elites during the Cold War. By Peter Beinart

Defense Systems

ONR stages international competition for autonomous boats

The Maritime RobotX Challenge pits 15 teams from five Pacific Rim countries against each other in a test of autonomous architectures.

Defense Systems

Air Force awards deal for next-gen 3D radar

Raytheon wins a $19.5 million contract to get started on the first three of what could be 35 systems, which will form the backbone of ground-based air defense.

Threats

These Are the Threats People Around the World Worry About the Most

The survey asked people to choose among disease, nuclear weapons, environment, inequality, and discrimination. By Jeanne Kim

Threats

The Pentagon Can't Say If It Stopped the Khorasan Terror Threat

Early reports that Mohsin al-Fadhli, one of the group's leaders, was killed during still can’t be confirmed. By Jordain Carney