AP NewsBreak: Yemen Says Saudis Behind Attack
AP NewsBreak: Yemen investigators say Saudi militants behind deadly attack on defense building
Nuke Material 'Widespread' But Not Easy to Unleash
Each year 515,000 tons of radioactive materials are transported in the U.S.
Pakistani Party Turns up Heat on CIA Drone Strikes
Pakistani party sharply criticizes CIA drone program, spotlighting thorny issue for government
Cold, Cold War: Putin Talks Tough Over US Arctic Rivalry
Putin: U.S. missile threat forces Russian military to stay in melting Arctic.
GIs Survive IEDs With Gadgets, Guts, 'Dumb Luck'
From soldiers braving IEDs to an FBI lab that learns the bombs' secrets.
New Hope for American Arrested as CIA 'Spy' in Iran?
Sister: Nuclear deal a good sign for former Marine Amir Hekmati.
Obama Asks Iran for 'Safe Return' of Former FBI Agent
Wife believes 'just a matter of time' until return of Robert Levinson.
FBI Agent Took Gifts and Cash, Ex-Mobster Informant Alleges
Informant says agent "obstructed" murder case, FBI opens internal investigation.
Now the US Can Launch Drones From Underwater
Submerged sub drone launch to help "meet the needs" of special ops forces.
How to Shop Online Safely on Cyber Monday
On holiday buying spree, feds warn consumers about scammers, hackers.
Reports: Russia Arrests 15 Suspected Terrorists in Moscow
Security Forces videotape raid, arrests, discovery of explosives.
Watch: Would Firefighting Planes Have Helped Doomed Firemen?
Investigation reveals six air tankers requested in Arizona fire that killed 19 hotshot firemen.
Watch: Big Banks Target Students on Campus
Feds probe multi-million deals between banks, schools.
Watch: Investigation: Mortgage Help Really a 'Rip Off'?
Brian Ross and The ABC News Fixer get on the case and help save a home.
Watch: American Drones Strike in Yemen
Several militants killed in recent wave of U.S. drone strikes.
Watch: Arizona Firefighter Tragedy Survivor Breaks Silence
Brendan McDonough Says He Felt 'Numb' After Learning of Colleagues Deaths.
Watch: Fort Hood Trial Could Reopen Survivors' Wounds
Victims have blasted the U.S. military over calling the attack "workplace violence."
Watch: Edward Snowden Wants Political Asylum in Russia
After weeks in Moscow airport, NSA leaker breaks his silence.
Watch: Putin Won't Turn Snowden Over, Wants Him Out
Russian president says the NSA leaker is a free man, but made it clear it's time to go.
Watch: NSA Leaker Hiding in Russia
Top US officials urge Kremlin to hand over Edward Snowden.
Watch: New Allegations Over TWA 800 Crash
Documentary features former investigators claiming cover-up.
Watch: Could Edward Snowden Defect to China?
U.S. officials worry alleged NSA leaker may take documents, knowledge to Asian powerhouse.
Watch: Prosecutors Plan to Prosecute Rogue NSA Whistle-Blower
Provisions of the Espionage Act may be used to bring charges against Edward Snowden.
Watch: Granny Catches Medicare Fraud
ABC News goes undercover to investigate insurance scams costing billions.
Watch: High Fashion, Deadly Factories
Tommy Hilfiger agrees to safer factories after ABCNews investigation.
Watch: Sexual Misconduct in U.S. Swimming
Part 1: Swim coaches have been banned over sexual misconduct with young girls.
Watch: Who Would Want To Kill Kate Puzey?
A Peace Corps volunteer was murdered after reporting a suspected child abuser.
Photos: Survivor of Hotshot Tragedy Speaks
Brendan 'Donut' McDonough Watched the Roaring Fire Turn on His Friends
Photos: TSA's 'Unusual' Confiscated Items
From credit card knives to pistol shoes, what the TSA has pulled from travelers.
Photos: Worst Hostage Crises
A look back at some of the world's worst hostage situations.