O'Reilly attacks a 29 year veteran of the armed services, and someone who taught the Geneva Conventions.
He's completely unable to recognize, and admit, that by failing to follow the Geneva Conventions, we encourage others to do the same- and put Americans and our allies in danger.
When he talks over her, she says, "I served my country 29 years, how many did you serve?"
His reply, "Cut her mic."
Andrew Sullivan has his say on this here.
People like O'Reilly would be quick, under different circumstances, to say that the US is a leader in the world. And we are. Are we going to be a leader for good, or for ill? That is the key question.