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Suzanne Malveaux looks into reports that the Palin family was involved in a heated fight.
A Florida man says George Zimmerman threatened him after an incident of road rage. Alina Machado reports.
Minnesota Vikings Adrian Peterson has been indicted on a felony charge of injury to a child. Rachel Nichols reports.
Luring teenagers, smuggling or kidnapping fighters, Brian Todd looks at ISIS' methods to recruit westerners.
Are we at war with ISIS? As Michelle Kosinski reports, it depends on who you ask in the Obama administration.
With estimates about the number of ISIS fighters increasing, Jim Sciutto asks: what exactly is the U.S. up against?