Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) – Americans still tend to think of terrorism as a scourge that comes from overseas. Which is why it's so jarring to learn that the man suspected of carrying out this suicide bombing in Syria was an American.
The State department Friday confirming that the bomber was a U.S. citizen. Two U.S. officials tell CNN he grew up in Florida, and went to school there.
His real name has not been disclosed.
The attack was coordinated by the al-Nusra front, an al Qaeda-linked group that the U.S. has listed as a terrorist organization, a spokesman for some of the Syrian rebels fighting the regime of Bashar al-Assad told CNN.
What could make someone from the west want to go over and join terrorists?
Turns out it happens more than you may think.
Equally disturbing is the Islamic State in Iraq and Syria, known as ISIS, which emerged last year as a major power in opposition-controlled parts of northern Syria.
National security experts tell CNN that they worry the next attempt to attack the U.S. will come from this group.
"It could," says Thomas Sanderson, co-director and senior fellow for the transnational threats project at the Center for Strategic and International Studies.
Check out Sanderson's analysis in the video above.