Threats

US shouldn't learn the wrong lessons about Ukraine’s drones, expert says

Unmanned strikes get the attention in reports and social media, but Ukrainian forces are increasingly using drones to sow mines and haul supplies.

US taps IBM to help boost cyber defenses in Europe and beyond

The company's staff will fan out to help various nations build security centers, train cybersecurity practitioners, and harden infrastructure against network attacks.

Europe, US gird for Russian hybrid warfare attacks

The key to curbing shadow wars is better intelligence sharing, experts and officials say. But that itself is under threat.

Russia may be learning dangerous lessons from its space mischief, DIA says

The head of the Defense Intelligence Agency says Moscow must be shown repercussions.

Updated

How federal agencies are responding to the Trump assassination attempt

FBI, Secret Service, and others are deploying personnel in response to Saturday's shooting.