Iraq begrudgingly asks U.S. for help in battle of Tikrit
The U.S. accepted the offer to help drive ISIS out of the city but under one major condition
World
Saudi Arabia calls up American expertise in bombing of Yemen
The Saudis want help in stopping the Iranian-backed Houthi rebels from advancing in Yemen
Photos of the week
The most compelling images from the week's news
U.S. backing another potential quagmire in Yemen?
Saudi Arabia and its allies have dropped hundreds of bombs this week on Shiite rebels, but Jere Van Dyk wonders if they've bitten off more than they can chew
How airline pilots are screened for psychiatric conditions
The crash of Germanwings Flight 9525 highlights concerns about how to ensure pilots are physically and mentally fit to fly
Identifying victims in French Alps crash a challenge
French police recover hundreds of pieces of Germanwings crash victims' remains from mountainside crash site
Somalia militants launch deadly attack on hotel in Mogadishu
Suicide bomber detonates explosives-laden car at the gate of a hotel popular with government officials
Iraqi Shiite cleric calls for unity against ISIS after militia pullout
Grand Ayatollah Ali al-Sistani's appeal comes after Iran-backed militias pull out of Tikrit in protest over U.S. airstrikes
Nigeria claims timely victory against Boko Haram
Announcement a day before elections couldn't have come at a better time for embattled President Goodluck Jonathan
Torn-up note indicates Germanwings co-pilot "hid his illness"
Evidence from Andreas Lubitz's house indicates he was receiving treatment for undisclosed illness
Assad: chlorine gas, barrel bomb claims "propaganda"
As Syria war enters 5th year, President Bashar al-Assad answers Charlie Rose's questions about some of the most serious accusations against the embattled leader
Key clue found in Germanwings investigation?
Police insist no "crucial" evidence uncovered as they scour homes, but reports suggest co-pilot Andreas Lubitz could have battled depression
Pilot screening questioned after Germanwings Flight 9525 crash
U.S. pilots legally required to disclose mental health issues, expert says, "but, of course, people can lie"
Capt. Sullenberger: Aviation culture needs to allow pilots to get help
"We need to make sure they can get the help they need and then come back to work when they are fit to fly," says Capt. Chesley "Sully" Sullenberger
Bashar al Assad says he's "open" to dialogue with U.S.
In an interview for "60 Minutes," CBS News' Charlie Rose spoke with the Syrian leader about the war which has torn his country apart for more than 4 years
Abdul El-Sayed, Mike Rogers make final pitch to Michigan voters
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Live Updates: Michigan Democratic rift spills into public view and more
Stevens endorses Rogers amid rift with El-Sayed
The issue that could tip the scales in the Texas Senate race
Jet from Texas crashes near homes in Palm Beach, Florida, killing 9 on board
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Creditor has "taken control" of forever cruise
U.S. sanctions push Cuba to the brink, with healthcare at risk
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Trump says Iran war will be put away very soon: "One way or the other"
