Second American killed fighting for ISIS
Family and friends confirm a second man from Minneapolis area has died in fighting after joining extremists
The Fight Against ISIS
American who died fighting for ISIS remembered as a "trickster"
Woman who went to Minnesota high school with Douglas McCain talks about man who later became known as Duale Khalid
Mother of American hostage issues direct appeal to ISIS leader
Shirley Sotloff, mother of journalist Steven Sotloff, urges extremist leader to "follow the example set by the Prophet Muhammad"
Why are so many Britons fighting for ISIS?
Hundreds of young men have left the U.K. to join the extremist group and have committed brutal acts in Middle East
U.S. seeking more intel on ISIS in Syria
Pentagon wants to learn how ISIS commands and controls its forces in Syria before U.S. launches any airstrikes there
American citizen killed while fighting in Syria
Douglas McAuthur McCain, 33, was one of dozens of U.S. citizens believed to be fighting for ISIS
Obama to veterans: Defeating ISIS won't be easy or quick
But, the president added, "America does not forget" and "justice will be done"
President Obama authorizes surveillance flights over Syria
While no airstrikes have been ordered yet, the Pentagon is drawing up plans to disrupt ISIS operations and kill its senior leaders everywhere
ISIS swiping hashtags as part of propaganda efforts
Hashtags related to California's earthquake were trending, so ISIS incorporated them into its online propaganda
As Pentagon preps for more airstrikes on ISIS, U.S. faces conundrum
U.S. officials face imperfect options in trying to halt ISIS' growth
Pentagon considers options against ISIS targets in Syria
President Obama hasn't made any decisions on strikes within Syria, but Pentagon has started making plans
James Foley's parents release one of his last letters
After a letter from the Vatican was read during a mass for the executed journalist in N.H., his family revealed some of his last words
Syria welcomes U.S. strikes against ISIS there, with conditions
Syria's foreign minister said the mission to rescue James Foley would have succeeded if Damascus had been a part of it
Gen. Dempsey: Pentagon will move against ISIS if necessary
If Islamic militants controlling territory in Iraq and Syria move directly against U.S. homeland, the American military will respond, Joint Chiefs chair said
Is it time to rethink U.S. policy toward hostage negotiations?
The release of journalist Peter Theo Curtis just one week after James Foley was murdered has raised questions about America's policies
ISIS captures major air base in Syria
Tabqa air field was last government-held outpost in extremist territory; government and activists confirm takeover
Obama must lay out a strategy to defeat ISIS, Republicans say
The murder of American journalist James Foley has clarified the threat from the Islamic militants, Sen. Kelly Ayotte said
White House braces for long campaign against ISIS
Obama returns from vacation to harsh reality of Islamist extremists' first act of terrorism against the U.S.
Execution marks "point of escalation" in fight on ISIS
Senior administration official tells CBS News that murderous group's threats against U.S. have to be taken seriously
As ISIS rampages in Mideast, U.S. eyes potential for domestic threat
There's no credible information pointing to ISIS plot against homeland, but officials have incomplete intel and that worries them
Chuck Hagel: ISIS "beyond anything we've seen"
Defense secretary denies intelligence failure doomed mission to rescue James Foley and other hostages, but warns ISIS "is beyond just a terrorist group"
Extorting ransoms has become a cash cow for ISIS
Expert says European governments may be encouraging terrorists by paying for hostages' release, but should the U.S. be more flexible in its no-negotiation policy?
Obama administration considering targeting ISIS in Syria
Despite previous statements that U.S. military action against ISIS would be limited to Iraq, the fight against ISIS now "knows no borders"
Sunnis pull out of Iraq talks after mosque attack
It's not clear whether Shiite militiamen or ISIS extremists carried out attack in volatile province that killed more than 60 people
How many Americans have joined ISIS?
While U.S. can only confirm small number of Americans have joined terror groups in Syria, officials suspect actual number may be in the dozens
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Cruise passenger who went overboard rescued after 20 hours at sea
