American Hostage of Taliban Appears in New Video
This is the first glimpse of Caitlan Coleman, 30, since 2014.
Memory of ISIS Hostage Kayla Mueller Lives on in New Playground
Mueller was an American aid worker who was captured by ISIS in 2013.
ISIS Hostage Family Says Obama Broke Promise for Charity Donation
Parents of Kayla Mueller say president offered contribution but never delivered.
TIMELINE: Kayla Mueller in ISIS Captivity
Arizona woman traveled halfway around the world to help refugees.
ISIS Hostage Kayla Mueller's Heartbreaking Proof of Life Video
"It's very terrifying here," American ISIS hostage says in the video.
Doctors Without Borders Refused to Help American ISIS Hostage Kayla Mueller
Arizona woman dedicated her life to helping others around the world.
Doctors Without Borders Statement on ABC News '20/20' Kayla Mueller Report
Doctors Without Borders statement on ABC News '20/20' Kayla Mueller report.
Authorities Investigate Russian Cyberattack on The New York Times
Authorities cite ongoing sneak attacks.
Emails Show ISIS Appeared Eager to Ransom Kayla Mueller, Expert Says
Correspondence shows a frantic family and the terror organization.
Yes, It's Possible to Hack the Election
Slight meddling in some swing precincts in swing states could tip the scales.
Obama Is Not the 'Founder' of ISIS – These Guys Are
Terrorist group traces lineage to 2003 Iraq invasion.
Watch: When ISIS Hostage Kayla Mueller's Parents Found Out She Was Captured
Carl and Marsha Mueller recall when they learned their daughter was in the hands of one of the world's most brutal terrorist...