Deadly Puzzle: ISIS's American Supporters 'Defy Easy Analysis'
After dozens of arrests, few commonalities emerge, report says.
Friends Say ISIS Paris Fugitive Called Them; Desperate, Hiding in Brussels
Most wanted man Salah Abdeslam says he’s in trouble with ISIS.
Al Qaeda Agent Convicted in Shopping Mall Plot Gets 40 Years
Released due to lack of evidence in U.K., Abid Naseer convicted by U.S. jurors.
Fingerprints Confirm ID of Woman Killed in Paris Raid
Hasna Aitboulahcen a drinker, drug user before “radicalization": acquaintance.
US Intel Foresaw Paris-Style Attack in Europe
May report says Belgian plot showed ISIS had expanded its deadly designs.
Suspected 'Mastermind' of Paris Attacks Identified
French officials: Abdel Hamid Abaaoud linked to previous terror plots.
Obama: 'No Specific' Intelligence Warned of Paris Attacks
Iraqi officials claim they tried to warn U.S., France about ISIS plot.
Gay CIA Contractor Says Issues 'Resolved' With Spy Agency
Former Navy SEAL Brett Jones feared for his life because of own teammates.
Terrorists Once Used Refugee Program to Settle in US
2010: Al Qaeda-linked terrorists caught on video handling weapons in Kentucky.
ISIS Claims Bomb Hidden in Soda Can Took Down Russian Airliner
Experts: Bomber may have been on board plane.
Investigation Impact: Miners Get Another Shot at Black Lung Benefits
After ABC News report aired, the U.S. Labor Department threw out a doctor's findings.
Americans Lose Billions in Chinese Investment Frauds
Chinese companies kicked off NASDAQ, NYSE after fraud allegations.
High Fashion, Deadly Factories
Tommy Hilfiger agrees to safer factories after ABCNews investigation.
Sexual Misconduct in U.S. Swimming
Part 1: Swim coaches have been banned over sexual misconduct with young girls.