John Brennan took over the CIA after years working for Barack Obama. Now he's on the hot seat as lawmakers demand to know whether the CIA spied on Congress.
Exclusive: Former Google CEO says Snowden helped us, but he broke the law.
What James Madison (and the rest of the Founding Fathers) would have thought of the NSA and Edward Snowden.
President Obama’s reforms at the NSA won’t protect Americans’ privacy from continued government intrusion.
Obama admitted to dragnet surveillance. We still don't know what will happen next.
Seeking a middle ground on surveillance, Obama pleases few.
Why belief in first-strike advantage is as misguided today as it was in 1914.
Why satellite images -- not smuggled videos -- reveal the real dangers lurking inside Kim Jong Un’s nuclear hermit kingdom.
And why was he taking "ethical hacking" classes there?
In World War II's aftermath, MI5 turned to fight a new threat. It wasn't the Soviets. It was bombers from Jerusalem.
For human rights advocates, 2013 brought many grim setbacks. Yet there were still some important signs of progress.
When an enemy can be anywhere, the state looks everywhere. So how can it infringe on privacy nowhere?
A botched drone strike in Yemen shows how America's anti-al Qaeda strategy has gone off the rails.
Why a judge's assault on 'Orwellian' surveillance could cripple the spy agency's legal and political support.
My day at the National Security Agency headquarters at Fort Meade.
A look at the Internet's lurid underbelly -- your one-stop shop for weapons, drugs, and illegal pornography.
I'd rather risk becoming a terrorist's victim than live under a surveillance state.
With Keith Alexander out fighting fires, meet the woman who's really running the NSA.
The real program to sabotage Iran's nuclear facilities was far more sophisticated than anyone realized.
In an uncertain world ... and 4 other ‘truths' America's generals want to sell you.
The debate over NSA surveillance is about something else entirely.
And why the White House needs to split up the “deep state” of the NSA and Cyber Command.
Why the killing of the Pakistani Taliban's No. 1 might cause a lot more pain for Pakistan than the CIA counted on.