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Latest ISIS video may reveal major clues
Chris Matthews is joined by John O'Regan and Michael Sheehan to discuss how the latest ISIS video may have revealed important clues about the origin of one of the group's members.
Can Trump bring peace to Syria when Obama could not?08:07
What Americans forget about the War on ISIS05:25
Ret. Gen. on Syria: ‘We should not abandon the fight’08:54
'Cubs of the caliphate': Role of kids in ISIS06:36
A look at ISIS' scare tactics05:10
How ISIS mastered Internet recruitment06:21