'This Week' Transcript: Rep. Mike McCaul

— -- Below is the "This Week" transcript for March 22, 2015. It is a rush transcript and may contain errors. It will be updated.

ANNOUNCER: Starting right now on ABC's THIS WEEK, breaking news. Evacuation -- why U.S. Special Forces are pulling out of a key country in the war on terror. The critical impact on the fight against ISIS and al Qaeda.

Clock ticking -- will President Obama's direct appeal to the Iranian people spark a nuclear deal?

Bloody arrest -- this morning, new developments from the University of Virginia.

(VIDEO CLIP)

UNIDENTIFIED MALE: Did officers go too far?

And center stage -- Monica Lewinsky back with a powerful new message. What it could mean for the Clinton campaign.

From ABC News, THIS WEEK WITH GEORGE STEPHANOPOULOS begins now.

MARTHA RADDATZ, HOST: Good morning.

I'm Martha Raddatz.

We start off with breaking news, major developments in a country considered one of the most dangerous in the world to the US. And now, U.S. Special Forces announcing they're pulling out of Yemen because of the growing chaos -- meaning there will be no U.S. presence on the ground there, which could have a huge impact in the fight against ISIS and al Qaeda.

ABC's Alex Marquardt has been tracking all of it -- good morning, Alex.

ALEX MARQUARDT, ABC NEWS CORRESPONDENT: Good morning, Martha.

It's hard to see the situation in Yemen this morning as anything other than completely anarchy in a failed state -- a complex web of warring factions that have pushed the U.S. out and created a vacuum that America's biggest enemies are now trying to fill.

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MARQUARDT (voice-over): This weekend, Yemen's growing chaos forcing the U.S. to pull out completely, the State Department saying 100 military trainers and Special Operations Forces have now left, forces that had remained even after the U.S. Embassy closed last month, eliminating the American presence in a country the Obama administration considers vital for counterterrorism.

BARACK OBAMA, PRESIDENT OF THE UNITED STATES: We continue to go after high value targets inside of Yemen and to continue -- we will continue to maintain the pressure that's required to keep the American people safe.

MARQUARDT: But now, the unrest in Yemen has reached a new low. The U.S.-backed president has fled the capital. Rebels from the Shiite Houthi tribe, supported by Iran and sworn enemies of the U.S., now in charge. And this morning, taking over Yemen's third biggest city.

Then, during Friday prayers, suicide attacks that struck two different Shiia mosques. More than 130 people killed, a Sunni jihadist group claiming links to ISIS warning, this is just the beginning.

UNIDENTIFIED MALE: It's unclear how much ISIS has actually been involved in these attacks. But I do think what is clear is that their -- their ideology and their inspiration has impacted several of these attacks.

MARQUARDT: Yemen's spokesman in Washington Tweeting, "I hate to say this, but I'm hearing the loud and clear beating of the drums of war."

It was in Yemen that the USS Cole was attacked by al Qaeda suicide bombers in 2000. Seventeen American sailors were killed.

Then, in 2012, in an operation designed by the Yemen-based Al Qaeda in the Arabian Peninsula, the so-called underwear bomber tried to bring down a plane with plastic explosives.

Martha Raddatz later touring the school and apartment where he trained.

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