Epstein had aided the Allied Forces in the Nuremberg trials. She was placed under arrest in St Louis, Missouri "for failing to disperse" during a protest of Gov. Jay Nixon's decision to call the National Guard into Ferguson."
Eight others were also arrested.
Epstein told the Nation,"I've been doing this since I was a teenager. I didn't think I would have to do it when I was 90. We need to stand up today so that people won't have to do this when they're 90."
Epstein is currently an activist and a supporter of the Free Gaza Movement.
Tensions escalated in Ferguson on Monday night after Nixon announced that the National Guard had been called in to help run the command center while police handled the protests.
According to Huffpost, President Barack Obama addressed reporters on Monday and condemned the arrest of the journalists covering Ferguson in the days since Michael Brown was shot and killed. Obama said,"he said he would be monitoring the National Guard presence to make sure it is "used in a limited and appropriate way. There is no excuse for excessive force by police."