And here on C-SPAN, we're waiting to take you live back inside the rotunda, the remains of Brian Sicknick, a late Capitol Police officer, will lie in honor.

And so I hide behind my door, and I just hear, where is she? Where is she? And this was the moment where I thought everything was over.

Alexandria Ocasio-Cortez says she now fears other members of Congress, and the Capitol

police force is more important than ever, with the remains of Officer Brian Sicknick, who

was murdered in the attack, given the rare honor of lying in state in the Capitol Rotunda.

But there have been reports that right-wing militia movements

are trying to recruit the members of police departments all over the country,

the National Guard,

and especially veterans who've served in Iraq or Afghanistan, even Vietnam,

and who are now trying to assimilate back into society.

Carolyn Gallowher is a professor at American University's School of International Service in Washington. Thanks very much for joining us.

Thanks for having me.

Why are these people vulnerable and why do they engage in this kind of behavior?

Well, I think the first thing to point out is that there's been a concerted effort to recruit them.

So, while I think they are in some ways vulnerable to being in groups like this,

they're not the only group in society that's vulnerable.

I mean, young white men are also vulnerable to being recruited by these groups.

You know, the alt-right started doing this with young

white men, you know, between the ages of, you know, 16 and 30 a couple of years ago around

Charlottesville. So, I mean, I think it's in large part it's about recruitment. But if you think

about why people join these movements and why military people might join them, there's a couple of

things. I mean, when I did research on the

...