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The Cray XT Jaguar features more than 224,000 processing cores, each with 2 gigabytes of local memory.

House OKs Bill to Promote ‘Exascale’ Supercomputing

The bill would require the Energy Department to research supercomputing technology, especially for reducing power consumption.

Pentagon Kills $475M Cyber Contract

The solicitation would have outsourced support for cyberspying and network attacks against foreigners, as well as the defense of military networks.

Hackers Scavenge CareFirst and Manipulate the Federal Reserve

Just another week in ThreatWatch, our regularly updated index of noteworthy data breaches.

Protestors rally against NSA surveillance in 2013.

What Happens if Patriot Act Section 215 Expires?

The Snowden leaks revealed that the NSA was interpreting the law to vacuum up millions of U.S. call records every day.

Inside the USAJobs Revamp and Other Digital Summit Highlights

Successful programs tended to come at problems from a user-centric point of view.

Archives Officials Worried Clinton Might Send Records to Little Rock

Chief records officer disputes legal group’s interpretation of 2012 emails.

Watchdog Says Agencies Aren’t Tracking How Much They Spend on Smartphones

The federal government spends about $1.2 billion each year on circa 1.5 million mobile devices and services.

The Apple Maps app is displayed on an Apple Watch during an event in San Francisco.

Video: Apple Now Has New Location-Tracking Powers

How the tech company is improving upon GPS for its users.

Those participating in AMAs usually provide proof, as Snowden did Thursday.

In Reddit Chat, Edward Snowden Calls Rand Paul's Filibuster a 'Sea Change'

The ex-spy answered users questions about NSA reform Thursday.

When It Comes to Protecting their Data, Americans Still Trust the Government More Than Facebook

Six percent of Americans say they’re “very confident” records maintained by federal agencies will be kept private and secure.