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(CNN) - Director of National Intelligence James Clapper testified last week in front of the Senate Intelligence committee that the al Qaeda tied group in Syria, al-Nusra Front, has "aspirations" for attacks in the U.S.
How real is the threat that these groups have capabilities to attack here in the U.S.?
"One of the highest security threats you can think of ... is the fact that we have jihadists training in Syria that could come back to the homeland with legal travel documents, and perpetrate an act of terrorism in the homeland," House Homeland Security Chair Rep. Michael McCaul told CNN's "The Lead with Jake Tapper."
The Texas Republican added the same group is a threat to the upcoming Sochi Winter Olympic Games in Russia.
"Syria is not quite that far away from Sochi. And so we're very concerned about Chechen rebels who've trained in Syria, who are returning to their homeland to fight the fight against the Russians," said McCaul.
The eyes of the world will be on the Sochi Olympics.
"What better way to make a political statement and a terrorist statement than to attack these Olympics," said McCaul.
For our full interview with Congressman Michael McCaul, click here, or check out the video below.